749005880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{86291}}^1$

素因数の和:86340

約数の個数: 64

約数和(自身を含む): 1988167680

約数和(自身を除く): 1239161800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 86291, 172582, 345164, 431455, 604037, 690328, 862910, 1208074, 1725820, 2416148, 2675021, 3020185, 3451640, 4832296, 5350042, 6040370, 10700084, 12080740, 13375105, 18725147, 21400168, 24161480, 26750210, 37450294, 53500420, 74900588, 93625735, 107000840, 149801176, 187251470, 374502940, 749005880]

約数ペア:

[(1, 749005880), (2, 374502940), (4, 187251470), (5, 149801176), (7, 107000840), (8, 93625735), (10, 74900588), (14, 53500420), (20, 37450294), (28, 26750210), (31, 24161480), (35, 21400168), (40, 18725147), (56, 13375105), (62, 12080740), (70, 10700084), (124, 6040370), (140, 5350042), (155, 4832296), (217, 3451640), (248, 3020185), (280, 2675021), (310, 2416148), (434, 1725820), (620, 1208074), (868, 862910), (1085, 690328), (1240, 604037), (1736, 431455), (2170, 345164), (4340, 172582), (8680, 86291)]