20355390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:762

約数の個数: 96

約数和(自身を含む): 59810400

約数和(自身を除く): 39455010

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 29, 30, 33, 45, 55, 58, 66, 87, 90, 99, 110, 145, 165, 174, 198, 261, 290, 319, 330, 435, 495, 522, 638, 709, 870, 957, 990, 1305, 1418, 1595, 1914, 2127, 2610, 2871, 3190, 3545, 4254, 4785, 5742, 6381, 7090, 7799, 9570, 10635, 12762, 14355, 15598, 20561, 21270, 23397, 28710, 31905, 38995, 41122, 46794, 61683, 63810, 70191, 77990, 102805, 116985, 123366, 140382, 185049, 205610, 226171, 233970, 308415, 350955, 370098, 452342, 616830, 678513, 701910, 925245, 1130855, 1357026, 1850490, 2035539, 2261710, 3392565, 4071078, 6785130, 10177695, 20355390]

約数ペア:

[(1, 20355390), (2, 10177695), (3, 6785130), (5, 4071078), (6, 3392565), (9, 2261710), (10, 2035539), (11, 1850490), (15, 1357026), (18, 1130855), (22, 925245), (29, 701910), (30, 678513), (33, 616830), (45, 452342), (55, 370098), (58, 350955), (66, 308415), (87, 233970), (90, 226171), (99, 205610), (110, 185049), (145, 140382), (165, 123366), (174, 116985), (198, 102805), (261, 77990), (290, 70191), (319, 63810), (330, 61683), (435, 46794), (495, 41122), (522, 38995), (638, 31905), (709, 28710), (870, 23397), (957, 21270), (990, 20561), (1305, 15598), (1418, 14355), (1595, 12762), (1914, 10635), (2127, 9570), (2610, 7799), (2871, 7090), (3190, 6381), (3545, 5742), (4254, 4785)]