31522660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3964

約数の個数: 48

約数和(自身を含む): 73608192

約数和(自身を除く): 42085532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3911, 4030, 7822, 8060, 15644, 19555, 39110, 50843, 78220, 101686, 121241, 203372, 242482, 254215, 484964, 508430, 606205, 1016860, 1212410, 1576133, 2424820, 3152266, 6304532, 7880665, 15761330, 31522660]

約数ペア:

[(1, 31522660), (2, 15761330), (4, 7880665), (5, 6304532), (10, 3152266), (13, 2424820), (20, 1576133), (26, 1212410), (31, 1016860), (52, 606205), (62, 508430), (65, 484964), (124, 254215), (130, 242482), (155, 203372), (260, 121241), (310, 101686), (403, 78220), (620, 50843), (806, 39110), (1612, 19555), (2015, 15644), (3911, 8060), (4030, 7822)]