689012820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{123479}}^1$

素因数の和:123525

約数の個数: 72

約数和(自身を含む): 2157442560

約数和(自身を除く): 1468429740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 123479, 246958, 370437, 493916, 617395, 740874, 1111311, 1234790, 1481748, 1852185, 2222622, 2469580, 3704370, 3827849, 4445244, 5556555, 7408740, 7655698, 11113110, 11483547, 15311396, 19139245, 22226220, 22967094, 34450641, 38278490, 45934188, 57417735, 68901282, 76556980, 114835470, 137802564, 172253205, 229670940, 344506410, 689012820]

約数ペア:

[(1, 689012820), (2, 344506410), (3, 229670940), (4, 172253205), (5, 137802564), (6, 114835470), (9, 76556980), (10, 68901282), (12, 57417735), (15, 45934188), (18, 38278490), (20, 34450641), (30, 22967094), (31, 22226220), (36, 19139245), (45, 15311396), (60, 11483547), (62, 11113110), (90, 7655698), (93, 7408740), (124, 5556555), (155, 4445244), (180, 3827849), (186, 3704370), (279, 2469580), (310, 2222622), (372, 1852185), (465, 1481748), (558, 1234790), (620, 1111311), (930, 740874), (1116, 617395), (1395, 493916), (1860, 370437), (2790, 246958), (5580, 123479)]