21553270960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1\times {\mathrm{1283}}^1$

素因数の和:1895

約数の個数: 160

約数和(自身を含む): 55970792640

約数和(自身を除く): 34417521680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 557, 580, 754, 1040, 1114, 1160, 1283, 1508, 1885, 2228, 2320, 2566, 2785, 3016, 3770, 4456, 5132, 5570, 6032, 6415, 7241, 7540, 8912, 10264, 11140, 12830, 14482, 15080, 16153, 16679, 20528, 22280, 25660, 28964, 30160, 32306, 33358, 36205, 37207, 44560, 51320, 57928, 64612, 66716, 72410, 74414, 80765, 83395, 102640, 115856, 129224, 133432, 144820, 148828, 161530, 166790, 186035, 209989, 258448, 266864, 289640, 297656, 323060, 333580, 372070, 419978, 483691, 579280, 595312, 646120, 667160, 714631, 744140, 839956, 967382, 1049945, 1292240, 1334320, 1429262, 1488280, 1679912, 1934764, 2099890, 2418455, 2858524, 2976560, 3359824, 3573155, 3869528, 4199780, 4836910, 5717048, 7146310, 7739056, 8399560, 9290203, 9673820, 11434096, 14292620, 16799120, 18580406, 19347640, 20724299, 28585240, 37160812, 38695280, 41448598, 46451015, 57170480, 74321624, 82897196, 92902030, 103621495, 148643248, 165794392, 185804060, 207242990, 269415887, 331588784, 371608120, 414485980, 538831774, 743216240, 828971960, 1077663548, 1347079435, 1657943920, 2155327096, 2694158870, 4310654192, 5388317740, 10776635480, 21553270960]

約数ペア:

[(1, 21553270960), (2, 10776635480), (4, 5388317740), (5, 4310654192), (8, 2694158870), (10, 2155327096), (13, 1657943920), (16, 1347079435), (20, 1077663548), (26, 828971960), (29, 743216240), (40, 538831774), (52, 414485980), (58, 371608120), (65, 331588784), (80, 269415887), (104, 207242990), (116, 185804060), (130, 165794392), (145, 148643248), (208, 103621495), (232, 92902030), (260, 82897196), (290, 74321624), (377, 57170480), (464, 46451015), (520, 41448598), (557, 38695280), (580, 37160812), (754, 28585240), (1040, 20724299), (1114, 19347640), (1160, 18580406), (1283, 16799120), (1508, 14292620), (1885, 11434096), (2228, 9673820), (2320, 9290203), (2566, 8399560), (2785, 7739056), (3016, 7146310), (3770, 5717048), (4456, 4836910), (5132, 4199780), (5570, 3869528), (6032, 3573155), (6415, 3359824), (7241, 2976560), (7540, 2858524), (8912, 2418455), (10264, 2099890), (11140, 1934764), (12830, 1679912), (14482, 1488280), (15080, 1429262), (16153, 1334320), (16679, 1292240), (20528, 1049945), (22280, 967382), (25660, 839956), (28964, 744140), (30160, 714631), (32306, 667160), (33358, 646120), (36205, 595312), (37207, 579280), (44560, 483691), (51320, 419978), (57928, 372070), (64612, 333580), (66716, 323060), (72410, 297656), (74414, 289640), (80765, 266864), (83395, 258448), (102640, 209989), (115856, 186035), (129224, 166790), (133432, 161530), (144820, 148828)]