1900989860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{293}}^1\times {\mathrm{383}}^1$

素因数の和:714

約数の個数: 144

約数和(自身を含む): 5045096448

約数和(自身を除く): 3144106588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 293, 308, 383, 385, 484, 586, 605, 766, 770, 847, 1172, 1210, 1465, 1532, 1540, 1694, 1915, 2051, 2420, 2681, 2930, 3223, 3388, 3830, 4102, 4213, 4235, 5362, 5860, 6446, 7660, 8204, 8426, 8470, 10255, 10724, 12892, 13405, 16115, 16852, 16940, 20510, 21065, 22561, 26810, 29491, 32230, 35453, 41020, 42130, 45122, 46343, 53620, 58982, 64460, 70906, 84260, 90244, 92686, 112219, 112805, 117964, 141812, 147455, 177265, 185372, 224438, 225610, 231715, 248171, 294910, 324401, 354530, 448876, 451220, 463430, 496342, 561095, 589820, 648802, 709060, 785533, 926860, 992684, 1122190, 1234409, 1240855, 1297604, 1571066, 1622005, 2244380, 2468818, 2481710, 3142132, 3244010, 3927665, 4937636, 4963420, 6172045, 6488020, 7855330, 8640863, 12344090, 13578499, 15710660, 17281726, 24688180, 27156998, 34563452, 43204315, 54313996, 67892495, 86408630, 95049493, 135784990, 172817260, 190098986, 271569980, 380197972, 475247465, 950494930, 1900989860]

約数ペア:

[(1, 1900989860), (2, 950494930), (4, 475247465), (5, 380197972), (7, 271569980), (10, 190098986), (11, 172817260), (14, 135784990), (20, 95049493), (22, 86408630), (28, 67892495), (35, 54313996), (44, 43204315), (55, 34563452), (70, 27156998), (77, 24688180), (110, 17281726), (121, 15710660), (140, 13578499), (154, 12344090), (220, 8640863), (242, 7855330), (293, 6488020), (308, 6172045), (383, 4963420), (385, 4937636), (484, 3927665), (586, 3244010), (605, 3142132), (766, 2481710), (770, 2468818), (847, 2244380), (1172, 1622005), (1210, 1571066), (1465, 1297604), (1532, 1240855), (1540, 1234409), (1694, 1122190), (1915, 992684), (2051, 926860), (2420, 785533), (2681, 709060), (2930, 648802), (3223, 589820), (3388, 561095), (3830, 496342), (4102, 463430), (4213, 451220), (4235, 448876), (5362, 354530), (5860, 324401), (6446, 294910), (7660, 248171), (8204, 231715), (8426, 225610), (8470, 224438), (10255, 185372), (10724, 177265), (12892, 147455), (13405, 141812), (16115, 117964), (16852, 112805), (16940, 112219), (20510, 92686), (21065, 90244), (22561, 84260), (26810, 70906), (29491, 64460), (32230, 58982), (35453, 53620), (41020, 46343), (42130, 45122)]