71504840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 176765760

約数和(自身を除く): 105260920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 652, 815, 997, 1304, 1630, 1793, 1994, 3260, 3586, 3988, 4985, 6520, 7172, 7976, 8965, 9970, 10967, 14344, 17930, 19940, 21934, 35860, 39880, 43868, 54835, 71720, 87736, 109670, 162511, 219340, 325022, 438680, 650044, 812555, 1300088, 1625110, 1787621, 3250220, 3575242, 6500440, 7150484, 8938105, 14300968, 17876210, 35752420, 71504840]

約数ペア:

[(1, 71504840), (2, 35752420), (4, 17876210), (5, 14300968), (8, 8938105), (10, 7150484), (11, 6500440), (20, 3575242), (22, 3250220), (40, 1787621), (44, 1625110), (55, 1300088), (88, 812555), (110, 650044), (163, 438680), (220, 325022), (326, 219340), (440, 162511), (652, 109670), (815, 87736), (997, 71720), (1304, 54835), (1630, 43868), (1793, 39880), (1994, 35860), (3260, 21934), (3586, 19940), (3988, 17930), (4985, 14344), (6520, 10967), (7172, 9970), (7976, 8965)]