636861992

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2687}}^1$

素因数の和:2802

約数の個数: 64

約数和(自身を含む): 1341204480

約数和(自身を除く): 704342488

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 53, 86, 104, 106, 172, 212, 344, 424, 559, 689, 1118, 1378, 2236, 2279, 2687, 2756, 4472, 4558, 5374, 5512, 9116, 10748, 18232, 21496, 29627, 34931, 59254, 69862, 115541, 118508, 139724, 142411, 231082, 237016, 279448, 284822, 462164, 569644, 924328, 1139288, 1502033, 1851343, 3004066, 3702686, 6008132, 6123673, 7405372, 12016264, 12247346, 14810744, 24494692, 48989384, 79607749, 159215498, 318430996, 636861992]

約数ペア:

[(1, 636861992), (2, 318430996), (4, 159215498), (8, 79607749), (13, 48989384), (26, 24494692), (43, 14810744), (52, 12247346), (53, 12016264), (86, 7405372), (104, 6123673), (106, 6008132), (172, 3702686), (212, 3004066), (344, 1851343), (424, 1502033), (559, 1139288), (689, 924328), (1118, 569644), (1378, 462164), (2236, 284822), (2279, 279448), (2687, 237016), (2756, 231082), (4472, 142411), (4558, 139724), (5374, 118508), (5512, 115541), (9116, 69862), (10748, 59254), (18232, 34931), (21496, 29627)]