20011860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1123}}^1$

素因数の和:1155

約数の個数: 120

約数和(自身を含む): 68546016

約数和(自身を除く): 48534156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1123, 1188, 1485, 1620, 1782, 1980, 2246, 2970, 3369, 3564, 4455, 4492, 5615, 5940, 6738, 8910, 10107, 11230, 12353, 13476, 16845, 17820, 20214, 22460, 24706, 30321, 33690, 37059, 40428, 49412, 50535, 60642, 61765, 67380, 74118, 90963, 101070, 111177, 121284, 123530, 148236, 151605, 181926, 185295, 202140, 222354, 247060, 303210, 333531, 363852, 370590, 444708, 454815, 555885, 606420, 667062, 741180, 909630, 1000593, 1111770, 1334124, 1667655, 1819260, 2001186, 2223540, 3335310, 4002372, 5002965, 6670620, 10005930, 20011860]

約数ペア:

[(1, 20011860), (2, 10005930), (3, 6670620), (4, 5002965), (5, 4002372), (6, 3335310), (9, 2223540), (10, 2001186), (11, 1819260), (12, 1667655), (15, 1334124), (18, 1111770), (20, 1000593), (22, 909630), (27, 741180), (30, 667062), (33, 606420), (36, 555885), (44, 454815), (45, 444708), (54, 370590), (55, 363852), (60, 333531), (66, 303210), (81, 247060), (90, 222354), (99, 202140), (108, 185295), (110, 181926), (132, 151605), (135, 148236), (162, 123530), (165, 121284), (180, 111177), (198, 101070), (220, 90963), (270, 74118), (297, 67380), (324, 61765), (330, 60642), (396, 50535), (405, 49412), (495, 40428), (540, 37059), (594, 33690), (660, 30321), (810, 24706), (891, 22460), (990, 20214), (1123, 17820), (1188, 16845), (1485, 13476), (1620, 12353), (1782, 11230), (1980, 10107), (2246, 8910), (2970, 6738), (3369, 5940), (3564, 5615), (4455, 4492)]