290425380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{691489}}^1$

素因数の和:691508

約数の個数: 48

約数和(自身を含む): 929362560

約数和(自身を除く): 638937180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 691489, 1382978, 2074467, 2765956, 3457445, 4148934, 4840423, 6914890, 8297868, 9680846, 10372335, 13829780, 14521269, 19361692, 20744670, 24202115, 29042538, 41489340, 48404230, 58085076, 72606345, 96808460, 145212690, 290425380]

約数ペア:

[(1, 290425380), (2, 145212690), (3, 96808460), (4, 72606345), (5, 58085076), (6, 48404230), (7, 41489340), (10, 29042538), (12, 24202115), (14, 20744670), (15, 19361692), (20, 14521269), (21, 13829780), (28, 10372335), (30, 9680846), (35, 8297868), (42, 6914890), (60, 4840423), (70, 4148934), (84, 3457445), (105, 2765956), (140, 2074467), (210, 1382978), (420, 691489)]