81743890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4177}}^1$

素因数の和:4306

約数の個数: 32

約数和(自身を含む): 156424320

約数和(自身を除く): 74680430

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1957, 3914, 4177, 8354, 9785, 19570, 20885, 41770, 79363, 158726, 396815, 430231, 793630, 860462, 2151155, 4302310, 8174389, 16348778, 40871945, 81743890]

約数ペア:

[(1, 81743890), (2, 40871945), (5, 16348778), (10, 8174389), (19, 4302310), (38, 2151155), (95, 860462), (103, 793630), (190, 430231), (206, 396815), (515, 158726), (1030, 79363), (1957, 41770), (3914, 20885), (4177, 19570), (8354, 9785)]