20281463280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{907}}^1\times {\mathrm{2389}}^1$

素因数の和:3328

約数の個数: 240

約数和(自身を含む): 73462902240

約数和(自身を除く): 53181438960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 907, 936, 1040, 1170, 1560, 1814, 1872, 2340, 2389, 2721, 3120, 3628, 4535, 4680, 4778, 5442, 7167, 7256, 8163, 9070, 9360, 9556, 10884, 11791, 11945, 13605, 14334, 14512, 16326, 18140, 19112, 21501, 21768, 23582, 23890, 27210, 28668, 31057, 32652, 35373, 35835, 36280, 38224, 40815, 43002, 43536, 47164, 47780, 54420, 57336, 58955, 62114, 65304, 70746, 71670, 72560, 81630, 86004, 93171, 94328, 95560, 106119, 107505, 108840, 114672, 117910, 124228, 130608, 141492, 143340, 155285, 163260, 172008, 176865, 186342, 188656, 191120, 212238, 215010, 217680, 235820, 248456, 279513, 282984, 286680, 310570, 326520, 344016, 353730, 372684, 424476, 430020, 465855, 471640, 496912, 530595, 559026, 565968, 573360, 621140, 653040, 707460, 745368, 848952, 860040, 931710, 943280, 1061190, 1118052, 1242280, 1397565, 1414920, 1490736, 1697904, 1720080, 1863420, 2122380, 2166823, 2236104, 2484560, 2795130, 2829840, 3726840, 4244760, 4333646, 4472208, 5590260, 6500469, 7453680, 8489520, 8667292, 10834115, 11180520, 13000938, 17334584, 19501407, 21668230, 22361040, 26001876, 28168699, 32502345, 34669168, 39002814, 43336460, 52003752, 56337398, 65004690, 78005628, 84506097, 86672920, 97507035, 104007504, 112674796, 130009380, 140843495, 156011256, 169012194, 173345840, 195014070, 225349592, 253518291, 260018760, 281686990, 312022512, 338024388, 390028140, 422530485, 450699184, 507036582, 520037520, 563373980, 676048776, 780056280, 845060970, 1014073164, 1126747960, 1267591455, 1352097552, 1560112560, 1690121940, 2028146328, 2253495920, 2535182910, 3380243880, 4056292656, 5070365820, 6760487760, 10140731640, 20281463280]

約数ペア:

[(1, 20281463280), (2, 10140731640), (3, 6760487760), (4, 5070365820), (5, 4056292656), (6, 3380243880), (8, 2535182910), (9, 2253495920), (10, 2028146328), (12, 1690121940), (13, 1560112560), (15, 1352097552), (16, 1267591455), (18, 1126747960), (20, 1014073164), (24, 845060970), (26, 780056280), (30, 676048776), (36, 563373980), (39, 520037520), (40, 507036582), (45, 450699184), (48, 422530485), (52, 390028140), (60, 338024388), (65, 312022512), (72, 281686990), (78, 260018760), (80, 253518291), (90, 225349592), (104, 195014070), (117, 173345840), (120, 169012194), (130, 156011256), (144, 140843495), (156, 130009380), (180, 112674796), (195, 104007504), (208, 97507035), (234, 86672920), (240, 84506097), (260, 78005628), (312, 65004690), (360, 56337398), (390, 52003752), (468, 43336460), (520, 39002814), (585, 34669168), (624, 32502345), (720, 28168699), (780, 26001876), (907, 22361040), (936, 21668230), (1040, 19501407), (1170, 17334584), (1560, 13000938), (1814, 11180520), (1872, 10834115), (2340, 8667292), (2389, 8489520), (2721, 7453680), (3120, 6500469), (3628, 5590260), (4535, 4472208), (4680, 4333646), (4778, 4244760), (5442, 3726840), (7167, 2829840), (7256, 2795130), (8163, 2484560), (9070, 2236104), (9360, 2166823), (9556, 2122380), (10884, 1863420), (11791, 1720080), (11945, 1697904), (13605, 1490736), (14334, 1414920), (14512, 1397565), (16326, 1242280), (18140, 1118052), (19112, 1061190), (21501, 943280), (21768, 931710), (23582, 860040), (23890, 848952), (27210, 745368), (28668, 707460), (31057, 653040), (32652, 621140), (35373, 573360), (35835, 565968), (36280, 559026), (38224, 530595), (40815, 496912), (43002, 471640), (43536, 465855), (47164, 430020), (47780, 424476), (54420, 372684), (57336, 353730), (58955, 344016), (62114, 326520), (65304, 310570), (70746, 286680), (71670, 282984), (72560, 279513), (81630, 248456), (86004, 235820), (93171, 217680), (94328, 215010), (95560, 212238), (106119, 191120), (107505, 188656), (108840, 186342), (114672, 176865), (117910, 172008), (124228, 163260), (130608, 155285), (141492, 143340)]