639885844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{4007}}^1$

素因数の和:4144

約数の個数: 48

約数和(自身を含む): 1253766528

約数和(自身を除く): 613880684

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 83, 148, 166, 332, 481, 962, 1079, 1924, 2158, 3071, 4007, 4316, 6142, 8014, 12284, 16028, 39923, 52091, 79846, 104182, 148259, 159692, 208364, 296518, 332581, 593036, 665162, 1330324, 1927367, 3854734, 4323553, 7709468, 8647106, 12305497, 17294212, 24610994, 49221988, 159971461, 319942922, 639885844]

約数ペア:

[(1, 639885844), (2, 319942922), (4, 159971461), (13, 49221988), (26, 24610994), (37, 17294212), (52, 12305497), (74, 8647106), (83, 7709468), (148, 4323553), (166, 3854734), (332, 1927367), (481, 1330324), (962, 665162), (1079, 593036), (1924, 332581), (2158, 296518), (3071, 208364), (4007, 159692), (4316, 148259), (6142, 104182), (8014, 79846), (12284, 52091), (16028, 39923)]