72163640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{106123}}^1$

素因数の和:106151

約数の個数: 32

約数和(自身を含む): 171920880

約数和(自身を除く): 99757240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 106123, 212246, 424492, 530615, 848984, 1061230, 1804091, 2122460, 3608182, 4244920, 7216364, 9020455, 14432728, 18040910, 36081820, 72163640]

約数ペア:

[(1, 72163640), (2, 36081820), (4, 18040910), (5, 14432728), (8, 9020455), (10, 7216364), (17, 4244920), (20, 3608182), (34, 2122460), (40, 1804091), (68, 1061230), (85, 848984), (136, 530615), (170, 424492), (340, 212246), (680, 106123)]