1405429640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{4993}}^1$

素因数の和:5262

約数の個数: 64

約数和(自身を含む): 3279260160

約数和(自身を除く): 1873830520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 227, 248, 310, 454, 620, 908, 1135, 1240, 1816, 2270, 4540, 4993, 7037, 9080, 9986, 14074, 19972, 24965, 28148, 35185, 39944, 49930, 56296, 70370, 99860, 140740, 154783, 199720, 281480, 309566, 619132, 773915, 1133411, 1238264, 1547830, 2266822, 3095660, 4533644, 5667055, 6191320, 9067288, 11334110, 22668220, 35135741, 45336440, 70271482, 140542964, 175678705, 281085928, 351357410, 702714820, 1405429640]

約数ペア:

[(1, 1405429640), (2, 702714820), (4, 351357410), (5, 281085928), (8, 175678705), (10, 140542964), (20, 70271482), (31, 45336440), (40, 35135741), (62, 22668220), (124, 11334110), (155, 9067288), (227, 6191320), (248, 5667055), (310, 4533644), (454, 3095660), (620, 2266822), (908, 1547830), (1135, 1238264), (1240, 1133411), (1816, 773915), (2270, 619132), (4540, 309566), (4993, 281480), (7037, 199720), (9080, 154783), (9986, 140740), (14074, 99860), (19972, 70370), (24965, 56296), (28148, 49930), (35185, 39944)]