647253880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4337}}^1$

素因数の和:4409

約数の個数: 128

約数和(自身を含む): 1836535680

約数和(自身を除く): 1189281800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 182, 205, 260, 280, 287, 328, 364, 410, 455, 520, 533, 574, 728, 820, 910, 1066, 1148, 1435, 1640, 1820, 2132, 2296, 2665, 2870, 3640, 3731, 4264, 4337, 5330, 5740, 7462, 8674, 10660, 11480, 14924, 17348, 18655, 21320, 21685, 29848, 30359, 34696, 37310, 43370, 56381, 60718, 74620, 86740, 112762, 121436, 149240, 151795, 173480, 177817, 225524, 242872, 281905, 303590, 355634, 394667, 451048, 563810, 607180, 711268, 789334, 889085, 1127620, 1214360, 1244719, 1422536, 1578668, 1778170, 1973335, 2255240, 2311621, 2489438, 3157336, 3556340, 3946670, 4623242, 4978876, 6223595, 7112680, 7893340, 9246484, 9957752, 11558105, 12447190, 15786680, 16181347, 18492968, 23116210, 24894380, 32362694, 46232420, 49788760, 64725388, 80906735, 92464840, 129450776, 161813470, 323626940, 647253880]

約数ペア:

[(1, 647253880), (2, 323626940), (4, 161813470), (5, 129450776), (7, 92464840), (8, 80906735), (10, 64725388), (13, 49788760), (14, 46232420), (20, 32362694), (26, 24894380), (28, 23116210), (35, 18492968), (40, 16181347), (41, 15786680), (52, 12447190), (56, 11558105), (65, 9957752), (70, 9246484), (82, 7893340), (91, 7112680), (104, 6223595), (130, 4978876), (140, 4623242), (164, 3946670), (182, 3556340), (205, 3157336), (260, 2489438), (280, 2311621), (287, 2255240), (328, 1973335), (364, 1778170), (410, 1578668), (455, 1422536), (520, 1244719), (533, 1214360), (574, 1127620), (728, 889085), (820, 789334), (910, 711268), (1066, 607180), (1148, 563810), (1435, 451048), (1640, 394667), (1820, 355634), (2132, 303590), (2296, 281905), (2665, 242872), (2870, 225524), (3640, 177817), (3731, 173480), (4264, 151795), (4337, 149240), (5330, 121436), (5740, 112762), (7462, 86740), (8674, 74620), (10660, 60718), (11480, 56381), (14924, 43370), (17348, 37310), (18655, 34696), (21320, 30359), (21685, 29848)]