20680110

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:252

約数の個数: 120

約数和(自身を含む): 61410888

約数和(自身を除く): 40730778

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 81, 90, 99, 110, 121, 135, 162, 165, 198, 211, 242, 270, 297, 330, 363, 405, 422, 495, 594, 605, 633, 726, 810, 891, 990, 1055, 1089, 1210, 1266, 1485, 1782, 1815, 1899, 2110, 2178, 2321, 2970, 3165, 3267, 3630, 3798, 4455, 4642, 5445, 5697, 6330, 6534, 6963, 8910, 9495, 9801, 10890, 11394, 11605, 13926, 16335, 17091, 18990, 19602, 20889, 23210, 25531, 28485, 32670, 34182, 34815, 41778, 49005, 51062, 56970, 62667, 69630, 76593, 85455, 98010, 104445, 125334, 127655, 153186, 170910, 188001, 208890, 229779, 255310, 313335, 376002, 382965, 459558, 626670, 689337, 765930, 940005, 1148895, 1378674, 1880010, 2068011, 2297790, 3446685, 4136022, 6893370, 10340055, 20680110]

約数ペア:

[(1, 20680110), (2, 10340055), (3, 6893370), (5, 4136022), (6, 3446685), (9, 2297790), (10, 2068011), (11, 1880010), (15, 1378674), (18, 1148895), (22, 940005), (27, 765930), (30, 689337), (33, 626670), (45, 459558), (54, 382965), (55, 376002), (66, 313335), (81, 255310), (90, 229779), (99, 208890), (110, 188001), (121, 170910), (135, 153186), (162, 127655), (165, 125334), (198, 104445), (211, 98010), (242, 85455), (270, 76593), (297, 69630), (330, 62667), (363, 56970), (405, 51062), (422, 49005), (495, 41778), (594, 34815), (605, 34182), (633, 32670), (726, 28485), (810, 25531), (891, 23210), (990, 20889), (1055, 19602), (1089, 18990), (1210, 17091), (1266, 16335), (1485, 13926), (1782, 11605), (1815, 11394), (1899, 10890), (2110, 9801), (2178, 9495), (2321, 8910), (2970, 6963), (3165, 6534), (3267, 6330), (3630, 5697), (3798, 5445), (4455, 4642)]