158751740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{15971}}^1$

素因数の和:16058

約数の個数: 48

約数和(自身を含む): 386394624

約数和(自身を除く): 227642884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 15971, 31942, 63884, 79855, 111797, 159710, 223594, 319420, 447188, 558985, 1117970, 1133941, 2235940, 2267882, 4535764, 5669705, 7937587, 11339410, 15875174, 22678820, 31750348, 39687935, 79375870, 158751740]

約数ペア:

[(1, 158751740), (2, 79375870), (4, 39687935), (5, 31750348), (7, 22678820), (10, 15875174), (14, 11339410), (20, 7937587), (28, 5669705), (35, 4535764), (70, 2267882), (71, 2235940), (140, 1133941), (142, 1117970), (284, 558985), (355, 447188), (497, 319420), (710, 223594), (994, 159710), (1420, 111797), (1988, 79855), (2485, 63884), (4970, 31942), (9940, 15971)]