123430120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1721}}^1$

素因数の和:1906

約数の個数: 64

約数和(自身を含む): 305000640

約数和(自身を除く): 181570520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 652, 815, 1304, 1630, 1721, 1793, 3260, 3442, 3586, 6520, 6884, 7172, 8605, 8965, 13768, 14344, 17210, 17930, 18931, 34420, 35860, 37862, 68840, 71720, 75724, 94655, 151448, 189310, 280523, 378620, 561046, 757240, 1122092, 1402615, 2244184, 2805230, 3085753, 5610460, 6171506, 11220920, 12343012, 15428765, 24686024, 30857530, 61715060, 123430120]

約数ペア:

[(1, 123430120), (2, 61715060), (4, 30857530), (5, 24686024), (8, 15428765), (10, 12343012), (11, 11220920), (20, 6171506), (22, 5610460), (40, 3085753), (44, 2805230), (55, 2244184), (88, 1402615), (110, 1122092), (163, 757240), (220, 561046), (326, 378620), (440, 280523), (652, 189310), (815, 151448), (1304, 94655), (1630, 75724), (1721, 71720), (1793, 68840), (3260, 37862), (3442, 35860), (3586, 34420), (6520, 18931), (6884, 17930), (7172, 17210), (8605, 14344), (8965, 13768)]