257636964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{827}}^1\times {\mathrm{1997}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 648502848

約数和(自身を除く): 390865884

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 827, 1654, 1997, 2481, 3308, 3994, 4962, 5991, 7988, 9924, 10751, 11982, 21502, 23964, 25961, 32253, 43004, 51922, 64506, 77883, 103844, 129012, 155766, 311532, 1651519, 3303038, 4954557, 6606076, 9909114, 19818228, 21469747, 42939494, 64409241, 85878988, 128818482, 257636964]

約数ペア:

[(1, 257636964), (2, 128818482), (3, 85878988), (4, 64409241), (6, 42939494), (12, 21469747), (13, 19818228), (26, 9909114), (39, 6606076), (52, 4954557), (78, 3303038), (156, 1651519), (827, 311532), (1654, 155766), (1997, 129012), (2481, 103844), (3308, 77883), (3994, 64506), (4962, 51922), (5991, 43004), (7988, 32253), (9924, 25961), (10751, 23964), (11982, 21502)]