646620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{829}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 1952160

約数和(自身を除く): 1305540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 829, 1658, 2487, 3316, 4145, 4974, 8290, 9948, 10777, 12435, 16580, 21554, 24870, 32331, 43108, 49740, 53885, 64662, 107770, 129324, 161655, 215540, 323310, 646620]

約数ペア:

[(1, 646620), (2, 323310), (3, 215540), (4, 161655), (5, 129324), (6, 107770), (10, 64662), (12, 53885), (13, 49740), (15, 43108), (20, 32331), (26, 24870), (30, 21554), (39, 16580), (52, 12435), (60, 10777), (65, 9948), (78, 8290), (130, 4974), (156, 4145), (195, 3316), (260, 2487), (390, 1658), (780, 829)]