210005840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1429}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 536215680

約数和(自身を除く): 326209840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 167, 176, 220, 334, 440, 668, 835, 880, 1336, 1429, 1670, 1837, 2672, 2858, 3340, 3674, 5716, 6680, 7145, 7348, 9185, 11432, 13360, 14290, 14696, 15719, 18370, 22864, 28580, 29392, 31438, 36740, 57160, 62876, 73480, 78595, 114320, 125752, 146960, 157190, 238643, 251504, 314380, 477286, 628760, 954572, 1193215, 1257520, 1909144, 2386430, 2625073, 3818288, 4772860, 5250146, 9545720, 10500292, 13125365, 19091440, 21000584, 26250730, 42001168, 52501460, 105002920, 210005840]

約数ペア:

[(1, 210005840), (2, 105002920), (4, 52501460), (5, 42001168), (8, 26250730), (10, 21000584), (11, 19091440), (16, 13125365), (20, 10500292), (22, 9545720), (40, 5250146), (44, 4772860), (55, 3818288), (80, 2625073), (88, 2386430), (110, 1909144), (167, 1257520), (176, 1193215), (220, 954572), (334, 628760), (440, 477286), (668, 314380), (835, 251504), (880, 238643), (1336, 157190), (1429, 146960), (1670, 125752), (1837, 114320), (2672, 78595), (2858, 73480), (3340, 62876), (3674, 57160), (5716, 36740), (6680, 31438), (7145, 29392), (7348, 28580), (9185, 22864), (11432, 18370), (13360, 15719), (14290, 14696)]