20000454400

素因数分解:

$2^8\times 5^2\times {\mathrm{167}}^1\times {\mathrm{18713}}^1$

素因数の和:18906

約数の個数: 108

約数和(自身を含む): 49803343632

約数和(自身を除く): 29802889232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 167, 200, 256, 320, 334, 400, 640, 668, 800, 835, 1280, 1336, 1600, 1670, 2672, 3200, 3340, 4175, 5344, 6400, 6680, 8350, 10688, 13360, 16700, 18713, 21376, 26720, 33400, 37426, 42752, 53440, 66800, 74852, 93565, 106880, 133600, 149704, 187130, 213760, 267200, 299408, 374260, 467825, 534400, 598816, 748520, 935650, 1068800, 1197632, 1497040, 1871300, 2395264, 2994080, 3125071, 3742600, 4790528, 5988160, 6250142, 7485200, 11976320, 12500284, 14970400, 15625355, 23952640, 25000568, 29940800, 31250710, 50001136, 59881600, 62501420, 78126775, 100002272, 119763200, 125002840, 156253550, 200004544, 250005680, 312507100, 400009088, 500011360, 625014200, 800018176, 1000022720, 1250028400, 2000045440, 2500056800, 4000090880, 5000113600, 10000227200, 20000454400]

約数ペア:

[(1, 20000454400), (2, 10000227200), (4, 5000113600), (5, 4000090880), (8, 2500056800), (10, 2000045440), (16, 1250028400), (20, 1000022720), (25, 800018176), (32, 625014200), (40, 500011360), (50, 400009088), (64, 312507100), (80, 250005680), (100, 200004544), (128, 156253550), (160, 125002840), (167, 119763200), (200, 100002272), (256, 78126775), (320, 62501420), (334, 59881600), (400, 50001136), (640, 31250710), (668, 29940800), (800, 25000568), (835, 23952640), (1280, 15625355), (1336, 14970400), (1600, 12500284), (1670, 11976320), (2672, 7485200), (3200, 6250142), (3340, 5988160), (4175, 4790528), (5344, 3742600), (6400, 3125071), (6680, 2994080), (8350, 2395264), (10688, 1871300), (13360, 1497040), (16700, 1197632), (18713, 1068800), (21376, 935650), (26720, 748520), (33400, 598816), (37426, 534400), (42752, 467825), (53440, 374260), (66800, 299408), (74852, 267200), (93565, 213760), (106880, 187130), (133600, 149704)]