71147480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 166682880

約数和(自身を除く): 95535400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 181, 248, 310, 317, 362, 620, 634, 724, 905, 1240, 1268, 1448, 1585, 1810, 2536, 3170, 3620, 5611, 6340, 7240, 9827, 11222, 12680, 19654, 22444, 28055, 39308, 44888, 49135, 56110, 57377, 78616, 98270, 112220, 114754, 196540, 224440, 229508, 286885, 393080, 459016, 573770, 1147540, 1778687, 2295080, 3557374, 7114748, 8893435, 14229496, 17786870, 35573740, 71147480]

約数ペア:

[(1, 71147480), (2, 35573740), (4, 17786870), (5, 14229496), (8, 8893435), (10, 7114748), (20, 3557374), (31, 2295080), (40, 1778687), (62, 1147540), (124, 573770), (155, 459016), (181, 393080), (248, 286885), (310, 229508), (317, 224440), (362, 196540), (620, 114754), (634, 112220), (724, 98270), (905, 78616), (1240, 57377), (1268, 56110), (1448, 49135), (1585, 44888), (1810, 39308), (2536, 28055), (3170, 22444), (3620, 19654), (5611, 12680), (6340, 11222), (7240, 9827)]