31206380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25579}}^1$

素因数の和:25649

約数の個数: 24

約数和(自身を含む): 66610320

約数和(自身を除く): 35403940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 25579, 51158, 102316, 127895, 255790, 511580, 1560319, 3120638, 6241276, 7801595, 15603190, 31206380]

約数ペア:

[(1, 31206380), (2, 15603190), (4, 7801595), (5, 6241276), (10, 3120638), (20, 1560319), (61, 511580), (122, 255790), (244, 127895), (305, 102316), (610, 51158), (1220, 25579)]