20731640380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{701}}^1\times {\mathrm{751}}^1$

素因数の和:1651

約数の個数: 96

約数和(自身を含む): 47891450880

約数和(自身を除く): 27159810500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 701, 716, 751, 895, 1402, 1502, 1790, 1969, 2804, 3004, 3505, 3580, 3755, 3938, 7010, 7510, 7711, 7876, 8261, 9845, 14020, 15020, 15422, 16522, 19690, 30844, 33044, 38555, 39380, 41305, 77110, 82610, 125479, 134429, 154220, 165220, 250958, 268858, 501916, 526451, 537716, 627395, 672145, 1052902, 1254790, 1344290, 1380269, 1478719, 2105804, 2509580, 2632255, 2688580, 2760538, 2957438, 5264510, 5521076, 5790961, 5914876, 6901345, 7393595, 10529020, 11581922, 13802690, 14787190, 23163844, 27605380, 28954805, 29574380, 57909610, 94234729, 115819220, 188469458, 376938916, 471173645, 942347290, 1036582019, 1884694580, 2073164038, 4146328076, 5182910095, 10365820190, 20731640380]

約数ペア:

[(1, 20731640380), (2, 10365820190), (4, 5182910095), (5, 4146328076), (10, 2073164038), (11, 1884694580), (20, 1036582019), (22, 942347290), (44, 471173645), (55, 376938916), (110, 188469458), (179, 115819220), (220, 94234729), (358, 57909610), (701, 29574380), (716, 28954805), (751, 27605380), (895, 23163844), (1402, 14787190), (1502, 13802690), (1790, 11581922), (1969, 10529020), (2804, 7393595), (3004, 6901345), (3505, 5914876), (3580, 5790961), (3755, 5521076), (3938, 5264510), (7010, 2957438), (7510, 2760538), (7711, 2688580), (7876, 2632255), (8261, 2509580), (9845, 2105804), (14020, 1478719), (15020, 1380269), (15422, 1344290), (16522, 1254790), (19690, 1052902), (30844, 672145), (33044, 627395), (38555, 537716), (39380, 526451), (41305, 501916), (77110, 268858), (82610, 250958), (125479, 165220), (134429, 154220)]