71465540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1579}}^1$

素因数の和:1692

約数の個数: 48

約数和(自身を含む): 157140480

約数和(自身を除く): 85674940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 365, 620, 730, 1460, 1579, 2263, 3158, 4526, 6316, 7895, 9052, 11315, 15790, 22630, 31580, 45260, 48949, 97898, 115267, 195796, 230534, 244745, 461068, 489490, 576335, 978980, 1152670, 2305340, 3573277, 7146554, 14293108, 17866385, 35732770, 71465540]

約数ペア:

[(1, 71465540), (2, 35732770), (4, 17866385), (5, 14293108), (10, 7146554), (20, 3573277), (31, 2305340), (62, 1152670), (73, 978980), (124, 576335), (146, 489490), (155, 461068), (292, 244745), (310, 230534), (365, 195796), (620, 115267), (730, 97898), (1460, 48949), (1579, 45260), (2263, 31580), (3158, 22630), (4526, 15790), (6316, 11315), (7895, 9052)]