20512679416

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1\times {\mathrm{1699}}^1$

素因数の和:2372

約数の個数: 64

約数和(自身を含む): 40245120000

約数和(自身を除く): 19732440584

約数列:

[1, 2, 4, 8, 31, 62, 89, 124, 178, 248, 356, 547, 712, 1094, 1699, 2188, 2759, 3398, 4376, 5518, 6796, 11036, 13592, 16957, 22072, 33914, 48683, 52669, 67828, 97366, 105338, 135656, 151211, 194732, 210676, 302422, 389464, 421352, 604844, 929353, 1209688, 1509173, 1858706, 3018346, 3717412, 4687541, 6036692, 7434824, 9375082, 12073384, 18750164, 28809943, 37500328, 57619886, 82712417, 115239772, 165424834, 230479544, 330849668, 661699336, 2564084927, 5128169854, 10256339708, 20512679416]

約数ペア:

[(1, 20512679416), (2, 10256339708), (4, 5128169854), (8, 2564084927), (31, 661699336), (62, 330849668), (89, 230479544), (124, 165424834), (178, 115239772), (248, 82712417), (356, 57619886), (547, 37500328), (712, 28809943), (1094, 18750164), (1699, 12073384), (2188, 9375082), (2759, 7434824), (3398, 6036692), (4376, 4687541), (5518, 3717412), (6796, 3018346), (11036, 1858706), (13592, 1509173), (16957, 1209688), (22072, 929353), (33914, 604844), (48683, 421352), (52669, 389464), (67828, 302422), (97366, 210676), (105338, 194732), (135656, 151211)]