811535140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{76129}}^1$

素因数の和:76192

約数の個数: 48

約数和(自身を含む): 1880106480

約数和(自身を除く): 1068571340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 76129, 152258, 304516, 380645, 761290, 989677, 1522580, 1979354, 3121289, 3958708, 4948385, 6242578, 9896770, 12485156, 15606445, 19793540, 31212890, 40576757, 62425780, 81153514, 162307028, 202883785, 405767570, 811535140]

約数ペア:

[(1, 811535140), (2, 405767570), (4, 202883785), (5, 162307028), (10, 81153514), (13, 62425780), (20, 40576757), (26, 31212890), (41, 19793540), (52, 15606445), (65, 12485156), (82, 9896770), (130, 6242578), (164, 4948385), (205, 3958708), (260, 3121289), (410, 1979354), (533, 1522580), (820, 989677), (1066, 761290), (2132, 380645), (2665, 304516), (5330, 152258), (10660, 76129)]