161449240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130201}}^1$

素因数の和:130243

約数の個数: 32

約数和(自身を含む): 374981760

約数和(自身を除く): 213532520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 130201, 260402, 520804, 651005, 1041608, 1302010, 2604020, 4036231, 5208040, 8072462, 16144924, 20181155, 32289848, 40362310, 80724620, 161449240]

約数ペア:

[(1, 161449240), (2, 80724620), (4, 40362310), (5, 32289848), (8, 20181155), (10, 16144924), (20, 8072462), (31, 5208040), (40, 4036231), (62, 2604020), (124, 1302010), (155, 1041608), (248, 651005), (310, 520804), (620, 260402), (1240, 130201)]