64181988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4729}}^1$

素因数の和:4781

約数の個数: 72

約数和(自身を含む): 180780600

約数和(自身を除く): 116598612

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 2262, 3393, 4524, 4729, 6786, 9458, 13572, 14187, 18916, 28374, 42561, 56748, 61477, 85122, 122954, 137141, 170244, 184431, 245908, 274282, 368862, 411423, 548564, 553293, 737724, 822846, 1106586, 1234269, 1645692, 1782833, 2213172, 2468538, 3565666, 4937076, 5348499, 7131332, 10696998, 16045497, 21393996, 32090994, 64181988]

約数ペア:

[(1, 64181988), (2, 32090994), (3, 21393996), (4, 16045497), (6, 10696998), (9, 7131332), (12, 5348499), (13, 4937076), (18, 3565666), (26, 2468538), (29, 2213172), (36, 1782833), (39, 1645692), (52, 1234269), (58, 1106586), (78, 822846), (87, 737724), (116, 553293), (117, 548564), (156, 411423), (174, 368862), (234, 274282), (261, 245908), (348, 184431), (377, 170244), (468, 137141), (522, 122954), (754, 85122), (1044, 61477), (1131, 56748), (1508, 42561), (2262, 28374), (3393, 18916), (4524, 14187), (4729, 13572), (6786, 9458)]