20856786740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{3877}}^1$

素因数の和:4089

約数の個数: 96

約数和(自身を含む): 45970122240

約数和(自身を除く): 25113335500

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 97, 118, 188, 194, 235, 236, 295, 388, 470, 485, 590, 940, 970, 1180, 1940, 2773, 3877, 4559, 5546, 5723, 7754, 9118, 11092, 11446, 13865, 15508, 18236, 19385, 22795, 22892, 27730, 28615, 38770, 45590, 55460, 57230, 77540, 91180, 114460, 182219, 228743, 268981, 364438, 376069, 457486, 537962, 728876, 752138, 911095, 914972, 1075924, 1143715, 1344905, 1504276, 1822190, 1880345, 2287430, 2689810, 3644380, 3760690, 4574860, 5379620, 7521380, 10750921, 17675243, 21501842, 22188071, 35350486, 43003684, 44376142, 53754605, 70700972, 88376215, 88752284, 107509210, 110940355, 176752430, 215018420, 221880710, 353504860, 443761420, 1042839337, 2085678674, 4171357348, 5214196685, 10428393370, 20856786740]

約数ペア:

[(1, 20856786740), (2, 10428393370), (4, 5214196685), (5, 4171357348), (10, 2085678674), (20, 1042839337), (47, 443761420), (59, 353504860), (94, 221880710), (97, 215018420), (118, 176752430), (188, 110940355), (194, 107509210), (235, 88752284), (236, 88376215), (295, 70700972), (388, 53754605), (470, 44376142), (485, 43003684), (590, 35350486), (940, 22188071), (970, 21501842), (1180, 17675243), (1940, 10750921), (2773, 7521380), (3877, 5379620), (4559, 4574860), (5546, 3760690), (5723, 3644380), (7754, 2689810), (9118, 2287430), (11092, 1880345), (11446, 1822190), (13865, 1504276), (15508, 1344905), (18236, 1143715), (19385, 1075924), (22795, 914972), (22892, 911095), (27730, 752138), (28615, 728876), (38770, 537962), (45590, 457486), (55460, 376069), (57230, 364438), (77540, 268981), (91180, 228743), (114460, 182219)]