647644564

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2949

約数の個数: 72

約数和(自身を含む): 1411055520

約数和(自身を除く): 763410956

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 61, 76, 98, 122, 133, 196, 244, 266, 427, 532, 854, 931, 1159, 1708, 1862, 2318, 2851, 2989, 3724, 4636, 5702, 5978, 8113, 11404, 11956, 16226, 19957, 32452, 39914, 54169, 56791, 79828, 108338, 113582, 139699, 173911, 216676, 227164, 279398, 347822, 379183, 558796, 695644, 758366, 1217377, 1516732, 2434754, 2654281, 3304309, 4869508, 5308562, 6608618, 8521639, 10617124, 13217236, 17043278, 23130163, 34086556, 46260326, 92520652, 161911141, 323822282, 647644564]

約数ペア:

[(1, 647644564), (2, 323822282), (4, 161911141), (7, 92520652), (14, 46260326), (19, 34086556), (28, 23130163), (38, 17043278), (49, 13217236), (61, 10617124), (76, 8521639), (98, 6608618), (122, 5308562), (133, 4869508), (196, 3304309), (244, 2654281), (266, 2434754), (427, 1516732), (532, 1217377), (854, 758366), (931, 695644), (1159, 558796), (1708, 379183), (1862, 347822), (2318, 279398), (2851, 227164), (2989, 216676), (3724, 173911), (4636, 139699), (5702, 113582), (5978, 108338), (8113, 79828), (11404, 56791), (11956, 54169), (16226, 39914), (19957, 32452)]