127273640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{787}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 309778560

約数和(自身を除く): 182504920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 311, 520, 622, 787, 1244, 1555, 1574, 2488, 3110, 3148, 3935, 4043, 6220, 6296, 7870, 8086, 10231, 12440, 15740, 16172, 20215, 20462, 31480, 32344, 40430, 40924, 51155, 80860, 81848, 102310, 161720, 204620, 244757, 409240, 489514, 979028, 1223785, 1958056, 2447570, 3181841, 4895140, 6363682, 9790280, 12727364, 15909205, 25454728, 31818410, 63636820, 127273640]

約数ペア:

[(1, 127273640), (2, 63636820), (4, 31818410), (5, 25454728), (8, 15909205), (10, 12727364), (13, 9790280), (20, 6363682), (26, 4895140), (40, 3181841), (52, 2447570), (65, 1958056), (104, 1223785), (130, 979028), (260, 489514), (311, 409240), (520, 244757), (622, 204620), (787, 161720), (1244, 102310), (1555, 81848), (1574, 80860), (2488, 51155), (3110, 40924), (3148, 40430), (3935, 32344), (4043, 31480), (6220, 20462), (6296, 20215), (7870, 16172), (8086, 15740), (10231, 12440)]