639093008

素因数分解:

$2^4\times {\mathrm{37}}^2\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:424

約数の個数: 60

約数和(自身を含む): 1287573840

約数和(自身を除く): 648480832

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 163, 179, 296, 326, 358, 592, 652, 716, 1304, 1369, 1432, 2608, 2738, 2864, 5476, 6031, 6623, 10952, 12062, 13246, 21904, 24124, 26492, 29177, 48248, 52984, 58354, 96496, 105968, 116708, 223147, 233416, 245051, 446294, 466832, 490102, 892588, 980204, 1079549, 1785176, 1960408, 2159098, 3570352, 3920816, 4318196, 8636392, 17272784, 39943313, 79886626, 159773252, 319546504, 639093008]

約数ペア:

[(1, 639093008), (2, 319546504), (4, 159773252), (8, 79886626), (16, 39943313), (37, 17272784), (74, 8636392), (148, 4318196), (163, 3920816), (179, 3570352), (296, 2159098), (326, 1960408), (358, 1785176), (592, 1079549), (652, 980204), (716, 892588), (1304, 490102), (1369, 466832), (1432, 446294), (2608, 245051), (2738, 233416), (2864, 223147), (5476, 116708), (6031, 105968), (6623, 96496), (10952, 58354), (12062, 52984), (13246, 48248), (21904, 29177), (24124, 26492)]