19713780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:347

約数の個数: 120

約数和(自身を含む): 63504672

約数和(自身を除く): 43790892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 108, 129, 135, 162, 172, 180, 215, 258, 270, 283, 324, 387, 405, 430, 516, 540, 566, 645, 774, 810, 849, 860, 1132, 1161, 1290, 1415, 1548, 1620, 1698, 1935, 2322, 2547, 2580, 2830, 3396, 3483, 3870, 4245, 4644, 5094, 5660, 5805, 6966, 7641, 7740, 8490, 10188, 11610, 12169, 12735, 13932, 15282, 16980, 17415, 22923, 23220, 24338, 25470, 30564, 34830, 36507, 38205, 45846, 48676, 50940, 60845, 69660, 73014, 76410, 91692, 109521, 114615, 121690, 146028, 152820, 182535, 219042, 229230, 243380, 328563, 365070, 438084, 458460, 547605, 657126, 730140, 985689, 1095210, 1314252, 1642815, 1971378, 2190420, 3285630, 3942756, 4928445, 6571260, 9856890, 19713780]

約数ペア:

[(1, 19713780), (2, 9856890), (3, 6571260), (4, 4928445), (5, 3942756), (6, 3285630), (9, 2190420), (10, 1971378), (12, 1642815), (15, 1314252), (18, 1095210), (20, 985689), (27, 730140), (30, 657126), (36, 547605), (43, 458460), (45, 438084), (54, 365070), (60, 328563), (81, 243380), (86, 229230), (90, 219042), (108, 182535), (129, 152820), (135, 146028), (162, 121690), (172, 114615), (180, 109521), (215, 91692), (258, 76410), (270, 73014), (283, 69660), (324, 60845), (387, 50940), (405, 48676), (430, 45846), (516, 38205), (540, 36507), (566, 34830), (645, 30564), (774, 25470), (810, 24338), (849, 23220), (860, 22923), (1132, 17415), (1161, 16980), (1290, 15282), (1415, 13932), (1548, 12735), (1620, 12169), (1698, 11610), (1935, 10188), (2322, 8490), (2547, 7740), (2580, 7641), (2830, 6966), (3396, 5805), (3483, 5660), (3870, 5094), (4245, 4644)]