51401220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{65899}}^1$

素因数の和:65924

約数の個数: 48

約数和(自身を含む): 154996800

約数和(自身を除く): 103595580

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, 65899, 131798, 197697, 263596, 329495, 395394, 658990, 790788, 856687, 988485, 1317980, 1713374, 1976970, 2570061, 3426748, 3953940, 4283435, 5140122, 8566870, 10280244, 12850305, 17133740, 25700610, 51401220]

約数ペア:

[(1, 51401220), (2, 25700610), (3, 17133740), (4, 12850305), (5, 10280244), (6, 8566870), (10, 5140122), (12, 4283435), (13, 3953940), (15, 3426748), (20, 2570061), (26, 1976970), (30, 1713374), (39, 1317980), (52, 988485), (60, 856687), (65, 790788), (78, 658990), (130, 395394), (156, 329495), (195, 263596), (260, 197697), (390, 131798), (780, 65899)]