490140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 1703520

約数和(自身を除く): 1213380

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, 389, 420, 630, 778, 1167, 1260, 1556, 1945, 2334, 2723, 3501, 3890, 4668, 5446, 5835, 7002, 7780, 8169, 10892, 11670, 13615, 14004, 16338, 17505, 23340, 24507, 27230, 32676, 35010, 40845, 49014, 54460, 70020, 81690, 98028, 122535, 163380, 245070, 490140]

約数ペア:

[(1, 490140), (2, 245070), (3, 163380), (4, 122535), (5, 98028), (6, 81690), (7, 70020), (9, 54460), (10, 49014), (12, 40845), (14, 35010), (15, 32676), (18, 27230), (20, 24507), (21, 23340), (28, 17505), (30, 16338), (35, 14004), (36, 13615), (42, 11670), (45, 10892), (60, 8169), (63, 7780), (70, 7002), (84, 5835), (90, 5446), (105, 4668), (126, 3890), (140, 3501), (180, 2723), (210, 2334), (252, 1945), (315, 1556), (389, 1260), (420, 1167), (630, 778)]