161356240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65063}}^1$

素因数の和:65107

約数の個数: 40

約数和(自身を含む): 387260928

約数和(自身を除く): 225904688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 65063, 130126, 260252, 325315, 520504, 650630, 1041008, 1301260, 2016953, 2602520, 4033906, 5205040, 8067812, 10084765, 16135624, 20169530, 32271248, 40339060, 80678120, 161356240]

約数ペア:

[(1, 161356240), (2, 80678120), (4, 40339060), (5, 32271248), (8, 20169530), (10, 16135624), (16, 10084765), (20, 8067812), (31, 5205040), (40, 4033906), (62, 2602520), (80, 2016953), (124, 1301260), (155, 1041008), (248, 650630), (310, 520504), (496, 325315), (620, 260252), (1240, 130126), (2480, 65063)]