644860216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{80527}}^1$

素因数の和:80564

約数の個数: 64

約数和(自身を含む): 1623444480

約数和(自身を除く): 978584264

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 4004, 8008, 80527, 161054, 322108, 563689, 644216, 885797, 1046851, 1127378, 1771594, 2093702, 2254756, 3543188, 4187404, 4509512, 6200579, 7086376, 7327957, 8374808, 11515361, 12401158, 14655914, 23030722, 24802316, 29311828, 46061444, 49604632, 58623656, 80607527, 92122888, 161215054, 322430108, 644860216]

約数ペア:

[(1, 644860216), (2, 322430108), (4, 161215054), (7, 92122888), (8, 80607527), (11, 58623656), (13, 49604632), (14, 46061444), (22, 29311828), (26, 24802316), (28, 23030722), (44, 14655914), (52, 12401158), (56, 11515361), (77, 8374808), (88, 7327957), (91, 7086376), (104, 6200579), (143, 4509512), (154, 4187404), (182, 3543188), (286, 2254756), (308, 2093702), (364, 1771594), (572, 1127378), (616, 1046851), (728, 885797), (1001, 644216), (1144, 563689), (2002, 322108), (4004, 161054), (8008, 80527)]