20729367620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{2897}}^1$

素因数の和:3034

約数の個数: 144

約数和(自身を含む): 49448342160

約数和(自身を除く): 28718974540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 73, 116, 130, 145, 146, 169, 260, 290, 292, 338, 365, 377, 580, 676, 730, 754, 845, 949, 1460, 1508, 1690, 1885, 1898, 2117, 2897, 3380, 3770, 3796, 4234, 4745, 4901, 5794, 7540, 8468, 9490, 9802, 10585, 11588, 12337, 14485, 18980, 19604, 21170, 24505, 24674, 27521, 28970, 37661, 42340, 49010, 49348, 55042, 57940, 61685, 75322, 84013, 98020, 110084, 123370, 137605, 150644, 168026, 188305, 211481, 246740, 275210, 336052, 357773, 376610, 420065, 422962, 489593, 550420, 715546, 753220, 840130, 845924, 979186, 1057405, 1092169, 1431092, 1680260, 1788865, 1958372, 2114810, 2184338, 2447965, 2749253, 3577730, 4229620, 4368676, 4895930, 5460845, 5498506, 6132949, 7155460, 9791860, 10921690, 10997012, 12265898, 13746265, 14198197, 21843380, 24531796, 27492530, 28396394, 30664745, 35740289, 54985060, 56792788, 61329490, 70990985, 71480578, 79728337, 122658980, 141981970, 142961156, 159456674, 178701445, 283963940, 318913348, 357402890, 398641685, 714805780, 797283370, 1036468381, 1594566740, 2072936762, 4145873524, 5182341905, 10364683810, 20729367620]

約数ペア:

[(1, 20729367620), (2, 10364683810), (4, 5182341905), (5, 4145873524), (10, 2072936762), (13, 1594566740), (20, 1036468381), (26, 797283370), (29, 714805780), (52, 398641685), (58, 357402890), (65, 318913348), (73, 283963940), (116, 178701445), (130, 159456674), (145, 142961156), (146, 141981970), (169, 122658980), (260, 79728337), (290, 71480578), (292, 70990985), (338, 61329490), (365, 56792788), (377, 54985060), (580, 35740289), (676, 30664745), (730, 28396394), (754, 27492530), (845, 24531796), (949, 21843380), (1460, 14198197), (1508, 13746265), (1690, 12265898), (1885, 10997012), (1898, 10921690), (2117, 9791860), (2897, 7155460), (3380, 6132949), (3770, 5498506), (3796, 5460845), (4234, 4895930), (4745, 4368676), (4901, 4229620), (5794, 3577730), (7540, 2749253), (8468, 2447965), (9490, 2184338), (9802, 2114810), (10585, 1958372), (11588, 1788865), (12337, 1680260), (14485, 1431092), (18980, 1092169), (19604, 1057405), (21170, 979186), (24505, 845924), (24674, 840130), (27521, 753220), (28970, 715546), (37661, 550420), (42340, 489593), (49010, 422962), (49348, 420065), (55042, 376610), (57940, 357773), (61685, 336052), (75322, 275210), (84013, 246740), (98020, 211481), (110084, 188305), (123370, 168026), (137605, 150644)]