2405780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 5738880

約数和(自身を除く): 3333100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 487, 494, 974, 988, 1235, 1948, 2435, 2470, 4870, 4940, 6331, 9253, 9740, 12662, 18506, 25324, 31655, 37012, 46265, 63310, 92530, 120289, 126620, 185060, 240578, 481156, 601445, 1202890, 2405780]

約数ペア:

[(1, 2405780), (2, 1202890), (4, 601445), (5, 481156), (10, 240578), (13, 185060), (19, 126620), (20, 120289), (26, 92530), (38, 63310), (52, 46265), (65, 37012), (76, 31655), (95, 25324), (130, 18506), (190, 12662), (247, 9740), (260, 9253), (380, 6331), (487, 4940), (494, 4870), (974, 2470), (988, 2435), (1235, 1948)]