21649680

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:295

約数の個数: 200

約数和(自身を含む): 81291672

約数和(自身を除く): 59641992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 257, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 514, 520, 540, 585, 624, 648, 702, 720, 771, 780, 810, 936, 1028, 1040, 1053, 1080, 1170, 1285, 1296, 1404, 1542, 1560, 1620, 1755, 1872, 2056, 2106, 2160, 2313, 2340, 2570, 2808, 3084, 3120, 3240, 3341, 3510, 3855, 4112, 4212, 4626, 4680, 5140, 5265, 5616, 6168, 6480, 6682, 6939, 7020, 7710, 8424, 9252, 9360, 10023, 10280, 10530, 11565, 12336, 13364, 13878, 14040, 15420, 16705, 16848, 18504, 20046, 20560, 20817, 21060, 23130, 26728, 27756, 28080, 30069, 30840, 33410, 34695, 37008, 40092, 41634, 42120, 46260, 50115, 53456, 55512, 60138, 61680, 66820, 69390, 80184, 83268, 84240, 90207, 92520, 100230, 104085, 111024, 120276, 133640, 138780, 150345, 160368, 166536, 180414, 185040, 200460, 208170, 240552, 267280, 270621, 277560, 300690, 333072, 360828, 400920, 416340, 451035, 481104, 541242, 555120, 601380, 721656, 801840, 832680, 902070, 1082484, 1202760, 1353105, 1443312, 1665360, 1804140, 2164968, 2405520, 2706210, 3608280, 4329936, 5412420, 7216560, 10824840, 21649680]

約数ペア:

[(1, 21649680), (2, 10824840), (3, 7216560), (4, 5412420), (5, 4329936), (6, 3608280), (8, 2706210), (9, 2405520), (10, 2164968), (12, 1804140), (13, 1665360), (15, 1443312), (16, 1353105), (18, 1202760), (20, 1082484), (24, 902070), (26, 832680), (27, 801840), (30, 721656), (36, 601380), (39, 555120), (40, 541242), (45, 481104), (48, 451035), (52, 416340), (54, 400920), (60, 360828), (65, 333072), (72, 300690), (78, 277560), (80, 270621), (81, 267280), (90, 240552), (104, 208170), (108, 200460), (117, 185040), (120, 180414), (130, 166536), (135, 160368), (144, 150345), (156, 138780), (162, 133640), (180, 120276), (195, 111024), (208, 104085), (216, 100230), (234, 92520), (240, 90207), (257, 84240), (260, 83268), (270, 80184), (312, 69390), (324, 66820), (351, 61680), (360, 60138), (390, 55512), (405, 53456), (432, 50115), (468, 46260), (514, 42120), (520, 41634), (540, 40092), (585, 37008), (624, 34695), (648, 33410), (702, 30840), (720, 30069), (771, 28080), (780, 27756), (810, 26728), (936, 23130), (1028, 21060), (1040, 20817), (1053, 20560), (1080, 20046), (1170, 18504), (1285, 16848), (1296, 16705), (1404, 15420), (1542, 14040), (1560, 13878), (1620, 13364), (1755, 12336), (1872, 11565), (2056, 10530), (2106, 10280), (2160, 10023), (2313, 9360), (2340, 9252), (2570, 8424), (2808, 7710), (3084, 7020), (3120, 6939), (3240, 6682), (3341, 6480), (3510, 6168), (3855, 5616), (4112, 5265), (4212, 5140), (4626, 4680)]