811375640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{1741}}^1$

素因数の和:2004

約数の個数: 64

約数和(自身を含む): 1866309120

約数和(自身を除く): 1054933480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 191, 244, 305, 382, 488, 610, 764, 955, 1220, 1528, 1741, 1910, 2440, 3482, 3820, 6964, 7640, 8705, 11651, 13928, 17410, 23302, 34820, 46604, 58255, 69640, 93208, 106201, 116510, 212402, 233020, 332531, 424804, 466040, 531005, 665062, 849608, 1062010, 1330124, 1662655, 2124020, 2660248, 3325310, 4248040, 6650620, 13301240, 20284391, 40568782, 81137564, 101421955, 162275128, 202843910, 405687820, 811375640]

約数ペア:

[(1, 811375640), (2, 405687820), (4, 202843910), (5, 162275128), (8, 101421955), (10, 81137564), (20, 40568782), (40, 20284391), (61, 13301240), (122, 6650620), (191, 4248040), (244, 3325310), (305, 2660248), (382, 2124020), (488, 1662655), (610, 1330124), (764, 1062010), (955, 849608), (1220, 665062), (1528, 531005), (1741, 466040), (1910, 424804), (2440, 332531), (3482, 233020), (3820, 212402), (6964, 116510), (7640, 106201), (8705, 93208), (11651, 69640), (13928, 58255), (17410, 46604), (23302, 34820)]