257495796

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1289}}^1$

素因数の和:1509

約数の個数: 72

約数和(自身を含む): 676166400

約数和(自身を除く): 418670604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 179, 186, 279, 358, 372, 537, 558, 716, 1074, 1116, 1289, 1611, 2148, 2578, 3222, 3867, 5156, 5549, 6444, 7734, 11098, 11601, 15468, 16647, 22196, 23202, 33294, 39959, 46404, 49941, 66588, 79918, 99882, 119877, 159836, 199764, 230731, 239754, 359631, 461462, 479508, 692193, 719262, 922924, 1384386, 1438524, 2076579, 2768772, 4153158, 7152661, 8306316, 14305322, 21457983, 28610644, 42915966, 64373949, 85831932, 128747898, 257495796]

約数ペア:

[(1, 257495796), (2, 128747898), (3, 85831932), (4, 64373949), (6, 42915966), (9, 28610644), (12, 21457983), (18, 14305322), (31, 8306316), (36, 7152661), (62, 4153158), (93, 2768772), (124, 2076579), (179, 1438524), (186, 1384386), (279, 922924), (358, 719262), (372, 692193), (537, 479508), (558, 461462), (716, 359631), (1074, 239754), (1116, 230731), (1289, 199764), (1611, 159836), (2148, 119877), (2578, 99882), (3222, 79918), (3867, 66588), (5156, 49941), (5549, 46404), (6444, 39959), (7734, 33294), (11098, 23202), (11601, 22196), (15468, 16647)]