89405240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72101}}^1$

素因数の和:72143

約数の個数: 32

約数和(自身を含む): 207653760

約数和(自身を除く): 118248520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72101, 144202, 288404, 360505, 576808, 721010, 1442020, 2235131, 2884040, 4470262, 8940524, 11175655, 17881048, 22351310, 44702620, 89405240]

約数ペア:

[(1, 89405240), (2, 44702620), (4, 22351310), (5, 17881048), (8, 11175655), (10, 8940524), (20, 4470262), (31, 2884040), (40, 2235131), (62, 1442020), (124, 721010), (155, 576808), (248, 360505), (310, 288404), (620, 144202), (1240, 72101)]