87350380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2417}}^1$

素因数の和:2578

約数の個数: 48

約数和(自身を含む): 199049760

約数和(自身を除く): 111699380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2417, 2780, 3614, 4834, 7228, 9035, 9668, 12085, 18070, 24170, 31421, 36140, 48340, 62842, 125684, 157105, 314210, 335963, 628420, 671926, 1343852, 1679815, 3359630, 4367519, 6719260, 8735038, 17470076, 21837595, 43675190, 87350380]

約数ペア:

[(1, 87350380), (2, 43675190), (4, 21837595), (5, 17470076), (10, 8735038), (13, 6719260), (20, 4367519), (26, 3359630), (52, 1679815), (65, 1343852), (130, 671926), (139, 628420), (260, 335963), (278, 314210), (556, 157105), (695, 125684), (1390, 62842), (1807, 48340), (2417, 36140), (2780, 31421), (3614, 24170), (4834, 18070), (7228, 12085), (9035, 9668)]