20038920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 256

約数和(自身を含む): 74649600

約数和(自身を除く): 54610680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 19, 20, 22, 24, 30, 33, 34, 38, 40, 44, 47, 51, 55, 57, 60, 66, 68, 76, 85, 88, 94, 95, 102, 110, 114, 120, 132, 136, 141, 152, 165, 170, 187, 188, 190, 204, 209, 220, 228, 235, 255, 264, 282, 285, 323, 330, 340, 374, 376, 380, 408, 418, 440, 456, 470, 510, 517, 561, 564, 570, 627, 646, 660, 680, 705, 748, 760, 799, 836, 893, 935, 940, 969, 1020, 1034, 1045, 1122, 1128, 1140, 1254, 1292, 1320, 1410, 1496, 1551, 1598, 1615, 1672, 1786, 1870, 1880, 1938, 2040, 2068, 2090, 2244, 2280, 2397, 2508, 2584, 2585, 2679, 2805, 2820, 3102, 3135, 3196, 3230, 3553, 3572, 3740, 3876, 3995, 4136, 4180, 4465, 4488, 4794, 4845, 5016, 5170, 5358, 5610, 5640, 6204, 6270, 6392, 6460, 7106, 7144, 7480, 7752, 7755, 7990, 8360, 8789, 8930, 9588, 9690, 9823, 10340, 10659, 10716, 11220, 11985, 12408, 12540, 12920, 13395, 14212, 15181, 15510, 15980, 17578, 17765, 17860, 19176, 19380, 19646, 20680, 21318, 21432, 22440, 23970, 25080, 26367, 26790, 28424, 29469, 30362, 31020, 31960, 35156, 35530, 35720, 38760, 39292, 42636, 43945, 45543, 47940, 49115, 52734, 53295, 53580, 58938, 60724, 62040, 70312, 71060, 75905, 78584, 85272, 87890, 91086, 95880, 98230, 105468, 106590, 107160, 117876, 121448, 131835, 142120, 147345, 151810, 166991, 175780, 182172, 196460, 210936, 213180, 227715, 235752, 263670, 294690, 303620, 333982, 351560, 364344, 392920, 426360, 455430, 500973, 527340, 589380, 607240, 667964, 834955, 910860, 1001946, 1054680, 1178760, 1335928, 1669910, 1821720, 2003892, 2504865, 3339820, 4007784, 5009730, 6679640, 10019460, 20038920]

約数ペア:

[(1, 20038920), (2, 10019460), (3, 6679640), (4, 5009730), (5, 4007784), (6, 3339820), (8, 2504865), (10, 2003892), (11, 1821720), (12, 1669910), (15, 1335928), (17, 1178760), (19, 1054680), (20, 1001946), (22, 910860), (24, 834955), (30, 667964), (33, 607240), (34, 589380), (38, 527340), (40, 500973), (44, 455430), (47, 426360), (51, 392920), (55, 364344), (57, 351560), (60, 333982), (66, 303620), (68, 294690), (76, 263670), (85, 235752), (88, 227715), (94, 213180), (95, 210936), (102, 196460), (110, 182172), (114, 175780), (120, 166991), (132, 151810), (136, 147345), (141, 142120), (152, 131835), (165, 121448), (170, 117876), (187, 107160), (188, 106590), (190, 105468), (204, 98230), (209, 95880), (220, 91086), (228, 87890), (235, 85272), (255, 78584), (264, 75905), (282, 71060), (285, 70312), (323, 62040), (330, 60724), (340, 58938), (374, 53580), (376, 53295), (380, 52734), (408, 49115), (418, 47940), (440, 45543), (456, 43945), (470, 42636), (510, 39292), (517, 38760), (561, 35720), (564, 35530), (570, 35156), (627, 31960), (646, 31020), (660, 30362), (680, 29469), (705, 28424), (748, 26790), (760, 26367), (799, 25080), (836, 23970), (893, 22440), (935, 21432), (940, 21318), (969, 20680), (1020, 19646), (1034, 19380), (1045, 19176), (1122, 17860), (1128, 17765), (1140, 17578), (1254, 15980), (1292, 15510), (1320, 15181), (1410, 14212), (1496, 13395), (1551, 12920), (1598, 12540), (1615, 12408), (1672, 11985), (1786, 11220), (1870, 10716), (1880, 10659), (1938, 10340), (2040, 9823), (2068, 9690), (2090, 9588), (2244, 8930), (2280, 8789), (2397, 8360), (2508, 7990), (2584, 7755), (2585, 7752), (2679, 7480), (2805, 7144), (2820, 7106), (3102, 6460), (3135, 6392), (3196, 6270), (3230, 6204), (3553, 5640), (3572, 5610), (3740, 5358), (3876, 5170), (3995, 5016), (4136, 4845), (4180, 4794), (4465, 4488)]