64718775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 128444160

約数和(自身を除く): 63725385

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 79, 99, 165, 225, 237, 275, 331, 395, 495, 711, 825, 869, 993, 1185, 1655, 1975, 2475, 2607, 2979, 3555, 3641, 4345, 4965, 5925, 7821, 8275, 10923, 13035, 14895, 17775, 18205, 21725, 24825, 26149, 32769, 39105, 54615, 65175, 74475, 78447, 91025, 130745, 163845, 195525, 235341, 273075, 287639, 392235, 653725, 819225, 862917, 1176705, 1438195, 1961175, 2588751, 4314585, 5883525, 7190975, 12943755, 21572925, 64718775]

約数ペア:

[(1, 64718775), (3, 21572925), (5, 12943755), (9, 7190975), (11, 5883525), (15, 4314585), (25, 2588751), (33, 1961175), (45, 1438195), (55, 1176705), (75, 862917), (79, 819225), (99, 653725), (165, 392235), (225, 287639), (237, 273075), (275, 235341), (331, 195525), (395, 163845), (495, 130745), (711, 91025), (825, 78447), (869, 74475), (993, 65175), (1185, 54615), (1655, 39105), (1975, 32769), (2475, 26149), (2607, 24825), (2979, 21725), (3555, 18205), (3641, 17775), (4345, 14895), (4965, 13035), (5925, 10923), (7821, 8275)]