18426608420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{31859}}^1$

素因数の和:32129

約数の個数: 72

約数和(自身を含む): 42712790400

約数和(自身を除く): 24286181980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 239, 242, 478, 484, 605, 956, 1195, 1210, 2390, 2420, 2629, 4780, 5258, 10516, 13145, 26290, 28919, 31859, 52580, 57838, 63718, 115676, 127436, 144595, 159295, 289190, 318590, 350449, 578380, 637180, 700898, 1401796, 1752245, 3504490, 3854939, 7008980, 7614301, 7709878, 15228602, 15419756, 19274695, 30457204, 38071505, 38549390, 76143010, 77098780, 83757311, 152286020, 167514622, 335029244, 418786555, 837573110, 921330421, 1675146220, 1842660842, 3685321684, 4606652105, 9213304210, 18426608420]

約数ペア:

[(1, 18426608420), (2, 9213304210), (4, 4606652105), (5, 3685321684), (10, 1842660842), (11, 1675146220), (20, 921330421), (22, 837573110), (44, 418786555), (55, 335029244), (110, 167514622), (121, 152286020), (220, 83757311), (239, 77098780), (242, 76143010), (478, 38549390), (484, 38071505), (605, 30457204), (956, 19274695), (1195, 15419756), (1210, 15228602), (2390, 7709878), (2420, 7614301), (2629, 7008980), (4780, 3854939), (5258, 3504490), (10516, 1752245), (13145, 1401796), (26290, 700898), (28919, 637180), (31859, 578380), (52580, 350449), (57838, 318590), (63718, 289190), (115676, 159295), (127436, 144595)]