71720458520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41697941}}^1$

素因数の和:41697995

約数の個数: 32

約数和(自身を含む): 165123850320

約数和(自身を除く): 93403391800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41697941, 83395882, 166791764, 208489705, 333583528, 416979410, 833958820, 1667917640, 1793011463, 3586022926, 7172045852, 8965057315, 14344091704, 17930114630, 35860229260, 71720458520]

約数ペア:

[(1, 71720458520), (2, 35860229260), (4, 17930114630), (5, 14344091704), (8, 8965057315), (10, 7172045852), (20, 3586022926), (40, 1793011463), (43, 1667917640), (86, 833958820), (172, 416979410), (215, 333583528), (344, 208489705), (430, 166791764), (860, 83395882), (1720, 41697941)]