82138160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78979}}^1$

素因数の和:79005

約数の個数: 40

約数和(自身を含む): 205663920

約数和(自身を除く): 123525760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 78979, 157958, 315916, 394895, 631832, 789790, 1026727, 1263664, 1579580, 2053454, 3159160, 4106908, 5133635, 6318320, 8213816, 10267270, 16427632, 20534540, 41069080, 82138160]

約数ペア:

[(1, 82138160), (2, 41069080), (4, 20534540), (5, 16427632), (8, 10267270), (10, 8213816), (13, 6318320), (16, 5133635), (20, 4106908), (26, 3159160), (40, 2053454), (52, 1579580), (65, 1263664), (80, 1026727), (104, 789790), (130, 631832), (208, 394895), (260, 315916), (520, 157958), (1040, 78979)]