64543820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 150822000

約数和(自身を除く): 86278180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 149, 179, 220, 242, 298, 358, 484, 596, 605, 716, 745, 895, 1210, 1490, 1639, 1790, 1969, 2420, 2980, 3278, 3580, 3938, 6556, 7876, 8195, 9845, 16390, 18029, 19690, 21659, 26671, 32780, 36058, 39380, 43318, 53342, 72116, 86636, 90145, 106684, 108295, 133355, 180290, 216590, 266710, 293381, 360580, 433180, 533420, 586762, 1173524, 1466905, 2933810, 3227191, 5867620, 6454382, 12908764, 16135955, 32271910, 64543820]

約数ペア:

[(1, 64543820), (2, 32271910), (4, 16135955), (5, 12908764), (10, 6454382), (11, 5867620), (20, 3227191), (22, 2933810), (44, 1466905), (55, 1173524), (110, 586762), (121, 533420), (149, 433180), (179, 360580), (220, 293381), (242, 266710), (298, 216590), (358, 180290), (484, 133355), (596, 108295), (605, 106684), (716, 90145), (745, 86636), (895, 72116), (1210, 53342), (1490, 43318), (1639, 39380), (1790, 36058), (1969, 32780), (2420, 26671), (2980, 21659), (3278, 19690), (3580, 18029), (3938, 16390), (6556, 9845), (7876, 8195)]