31323020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2659}}^1$

素因数の和:2718

約数の個数: 48

約数和(自身を含む): 71500800

約数和(自身を除く): 40177780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2659, 2945, 5318, 5890, 10636, 11780, 13295, 26590, 50521, 53180, 82429, 101042, 164858, 202084, 252605, 329716, 412145, 505210, 824290, 1010420, 1566151, 1648580, 3132302, 6264604, 7830755, 15661510, 31323020]

約数ペア:

[(1, 31323020), (2, 15661510), (4, 7830755), (5, 6264604), (10, 3132302), (19, 1648580), (20, 1566151), (31, 1010420), (38, 824290), (62, 505210), (76, 412145), (95, 329716), (124, 252605), (155, 202084), (190, 164858), (310, 101042), (380, 82429), (589, 53180), (620, 50521), (1178, 26590), (2356, 13295), (2659, 11780), (2945, 10636), (5318, 5890)]