390659620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{11831}}^1$

素因数の和:11980

約数の個数: 48

約数和(自身を含む): 890523648

約数和(自身を除く): 499864028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 6604, 8255, 11831, 16510, 23662, 33020, 47324, 59155, 118310, 153803, 236620, 307606, 615212, 769015, 1502537, 1538030, 3005074, 3076060, 6010148, 7512685, 15025370, 19532981, 30050740, 39065962, 78131924, 97664905, 195329810, 390659620]

約数ペア:

[(1, 390659620), (2, 195329810), (4, 97664905), (5, 78131924), (10, 39065962), (13, 30050740), (20, 19532981), (26, 15025370), (52, 7512685), (65, 6010148), (127, 3076060), (130, 3005074), (254, 1538030), (260, 1502537), (508, 769015), (635, 615212), (1270, 307606), (1651, 236620), (2540, 153803), (3302, 118310), (6604, 59155), (8255, 47324), (11831, 33020), (16510, 23662)]