208021880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:357

約数の個数: 128

約数和(自身を含む): 544320000

約数和(自身を除く): 336298120

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 149, 152, 167, 190, 209, 220, 298, 334, 380, 418, 440, 596, 668, 745, 760, 835, 836, 1045, 1192, 1336, 1490, 1639, 1670, 1672, 1837, 2090, 2831, 2980, 3173, 3278, 3340, 3674, 4180, 5662, 5960, 6346, 6556, 6680, 7348, 8195, 8360, 9185, 11324, 12692, 13112, 14155, 14696, 15865, 16390, 18370, 22648, 24883, 25384, 28310, 31141, 31730, 32780, 34903, 36740, 49766, 56620, 62282, 63460, 65560, 69806, 73480, 99532, 113240, 124415, 124564, 126920, 139612, 155705, 174515, 199064, 248830, 249128, 273713, 279224, 311410, 349030, 472777, 497660, 547426, 622820, 698060, 945554, 995320, 1094852, 1245640, 1368565, 1396120, 1891108, 2189704, 2363885, 2737130, 3782216, 4727770, 5200547, 5474260, 9455540, 10401094, 10948520, 18911080, 20802188, 26002735, 41604376, 52005470, 104010940, 208021880]

約数ペア:

[(1, 208021880), (2, 104010940), (4, 52005470), (5, 41604376), (8, 26002735), (10, 20802188), (11, 18911080), (19, 10948520), (20, 10401094), (22, 9455540), (38, 5474260), (40, 5200547), (44, 4727770), (55, 3782216), (76, 2737130), (88, 2363885), (95, 2189704), (110, 1891108), (149, 1396120), (152, 1368565), (167, 1245640), (190, 1094852), (209, 995320), (220, 945554), (298, 698060), (334, 622820), (380, 547426), (418, 497660), (440, 472777), (596, 349030), (668, 311410), (745, 279224), (760, 273713), (835, 249128), (836, 248830), (1045, 199064), (1192, 174515), (1336, 155705), (1490, 139612), (1639, 126920), (1670, 124564), (1672, 124415), (1837, 113240), (2090, 99532), (2831, 73480), (2980, 69806), (3173, 65560), (3278, 63460), (3340, 62282), (3674, 56620), (4180, 49766), (5662, 36740), (5960, 34903), (6346, 32780), (6556, 31730), (6680, 31141), (7348, 28310), (8195, 25384), (8360, 24883), (9185, 22648), (11324, 18370), (12692, 16390), (13112, 15865), (14155, 14696)]