408165745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 540126720

約数和(自身を除く): 131960975

約数列:

[1, 5, 13, 65, 79, 101, 395, 505, 787, 1027, 1313, 3935, 5135, 6565, 7979, 10231, 39895, 51155, 62173, 79487, 103727, 310865, 397435, 518635, 808249, 1033331, 4041245, 5166655, 6279473, 31397365, 81633149, 408165745]

約数ペア:

[(1, 408165745), (5, 81633149), (13, 31397365), (65, 6279473), (79, 5166655), (101, 4041245), (395, 1033331), (505, 808249), (787, 518635), (1027, 397435), (1313, 310865), (3935, 103727), (5135, 79487), (6565, 62173), (7979, 51155), (10231, 39895)]