9981180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2$

素因数の和:168

約数の個数: 108

約数和(自身を含む): 33500376

約数和(自身を除く): 23519196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 180, 198, 213, 220, 284, 330, 355, 396, 426, 495, 639, 660, 710, 781, 852, 990, 1065, 1278, 1420, 1562, 1980, 2130, 2343, 2556, 3124, 3195, 3905, 4260, 4686, 5041, 6390, 7029, 7810, 9372, 10082, 11715, 12780, 14058, 15123, 15620, 20164, 23430, 25205, 28116, 30246, 35145, 45369, 46860, 50410, 55451, 60492, 70290, 75615, 90738, 100820, 110902, 140580, 151230, 166353, 181476, 221804, 226845, 277255, 302460, 332706, 453690, 499059, 554510, 665412, 831765, 907380, 998118, 1109020, 1663530, 1996236, 2495295, 3327060, 4990590, 9981180]

約数ペア:

[(1, 9981180), (2, 4990590), (3, 3327060), (4, 2495295), (5, 1996236), (6, 1663530), (9, 1109020), (10, 998118), (11, 907380), (12, 831765), (15, 665412), (18, 554510), (20, 499059), (22, 453690), (30, 332706), (33, 302460), (36, 277255), (44, 226845), (45, 221804), (55, 181476), (60, 166353), (66, 151230), (71, 140580), (90, 110902), (99, 100820), (110, 90738), (132, 75615), (142, 70290), (165, 60492), (180, 55451), (198, 50410), (213, 46860), (220, 45369), (284, 35145), (330, 30246), (355, 28116), (396, 25205), (426, 23430), (495, 20164), (639, 15620), (660, 15123), (710, 14058), (781, 12780), (852, 11715), (990, 10082), (1065, 9372), (1278, 7810), (1420, 7029), (1562, 6390), (1980, 5041), (2130, 4686), (2343, 4260), (2556, 3905), (3124, 3195)]