71517740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1249}}^1$

素因数の和:1674

約数の個数: 48

約数和(自身を含む): 172200000

約数和(自身を除く): 100682260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1249, 1636, 2045, 2498, 2863, 4090, 4996, 5726, 6245, 8180, 8743, 11452, 12490, 14315, 17486, 24980, 28630, 34972, 43715, 57260, 87430, 174860, 510841, 1021682, 2043364, 2554205, 3575887, 5108410, 7151774, 10216820, 14303548, 17879435, 35758870, 71517740]

約数ペア:

[(1, 71517740), (2, 35758870), (4, 17879435), (5, 14303548), (7, 10216820), (10, 7151774), (14, 5108410), (20, 3575887), (28, 2554205), (35, 2043364), (70, 1021682), (140, 510841), (409, 174860), (818, 87430), (1249, 57260), (1636, 43715), (2045, 34972), (2498, 28630), (2863, 24980), (4090, 17486), (4996, 14315), (5726, 12490), (6245, 11452), (8180, 8743)]