9988020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{7927}}^1$

素因数の和:7949

約数の個数: 72

約数和(自身を含む): 34629504

約数和(自身を除く): 24641484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 7927, 15854, 23781, 31708, 39635, 47562, 55489, 71343, 79270, 95124, 110978, 118905, 142686, 158540, 166467, 221956, 237810, 277445, 285372, 332934, 356715, 475620, 499401, 554890, 665868, 713430, 832335, 998802, 1109780, 1426860, 1664670, 1997604, 2497005, 3329340, 4994010, 9988020]

約数ペア:

[(1, 9988020), (2, 4994010), (3, 3329340), (4, 2497005), (5, 1997604), (6, 1664670), (7, 1426860), (9, 1109780), (10, 998802), (12, 832335), (14, 713430), (15, 665868), (18, 554890), (20, 499401), (21, 475620), (28, 356715), (30, 332934), (35, 285372), (36, 277445), (42, 237810), (45, 221956), (60, 166467), (63, 158540), (70, 142686), (84, 118905), (90, 110978), (105, 95124), (126, 79270), (140, 71343), (180, 55489), (210, 47562), (252, 39635), (315, 31708), (420, 23781), (630, 15854), (1260, 7927)]