20848624900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{422893}}^1$

素因数の和:422953

約数の個数: 72

約数和(自身を含む): 49554718920

約数和(自身を除く): 28706094020

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 425, 493, 580, 725, 850, 986, 1450, 1700, 1972, 2465, 2900, 4930, 9860, 12325, 24650, 49300, 422893, 845786, 1691572, 2114465, 4228930, 7189181, 8457860, 10572325, 12263897, 14378362, 21144650, 24527794, 28756724, 35945905, 42289300, 49055588, 61319485, 71891810, 122638970, 143783620, 179729525, 208486249, 245277940, 306597425, 359459050, 416972498, 613194850, 718918100, 833944996, 1042431245, 1226389700, 2084862490, 4169724980, 5212156225, 10424312450, 20848624900]

約数ペア:

[(1, 20848624900), (2, 10424312450), (4, 5212156225), (5, 4169724980), (10, 2084862490), (17, 1226389700), (20, 1042431245), (25, 833944996), (29, 718918100), (34, 613194850), (50, 416972498), (58, 359459050), (68, 306597425), (85, 245277940), (100, 208486249), (116, 179729525), (145, 143783620), (170, 122638970), (290, 71891810), (340, 61319485), (425, 49055588), (493, 42289300), (580, 35945905), (725, 28756724), (850, 24527794), (986, 21144650), (1450, 14378362), (1700, 12263897), (1972, 10572325), (2465, 8457860), (2900, 7189181), (4930, 4228930), (9860, 2114465), (12325, 1691572), (24650, 845786), (49300, 422893)]