20123773340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{8681}}^1$

素因数の和:8999

約数の個数: 96

約数和(自身を含む): 47415388608

約数和(自身を除く): 27291615268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 257, 410, 451, 514, 820, 902, 1028, 1285, 1804, 2255, 2570, 2827, 4510, 5140, 5654, 8681, 9020, 10537, 11308, 14135, 17362, 21074, 28270, 34724, 42148, 43405, 52685, 56540, 86810, 95491, 105370, 115907, 173620, 190982, 210740, 231814, 355921, 381964, 463628, 477455, 579535, 711842, 954910, 1159070, 1423684, 1779605, 1909820, 2231017, 2318140, 3559210, 3915131, 4462034, 7118420, 7830262, 8924068, 11155085, 15660524, 19575655, 22310170, 24541187, 39151310, 44620340, 49082374, 78302620, 91471697, 98164748, 122705935, 182943394, 245411870, 365886788, 457358485, 490823740, 914716970, 1006188667, 1829433940, 2012377334, 4024754668, 5030943335, 10061886670, 20123773340]

約数ペア:

[(1, 20123773340), (2, 10061886670), (4, 5030943335), (5, 4024754668), (10, 2012377334), (11, 1829433940), (20, 1006188667), (22, 914716970), (41, 490823740), (44, 457358485), (55, 365886788), (82, 245411870), (110, 182943394), (164, 122705935), (205, 98164748), (220, 91471697), (257, 78302620), (410, 49082374), (451, 44620340), (514, 39151310), (820, 24541187), (902, 22310170), (1028, 19575655), (1285, 15660524), (1804, 11155085), (2255, 8924068), (2570, 7830262), (2827, 7118420), (4510, 4462034), (5140, 3915131), (5654, 3559210), (8681, 2318140), (9020, 2231017), (10537, 1909820), (11308, 1779605), (14135, 1423684), (17362, 1159070), (21074, 954910), (28270, 711842), (34724, 579535), (42148, 477455), (43405, 463628), (52685, 381964), (56540, 355921), (86810, 231814), (95491, 210740), (105370, 190982), (115907, 173620)]