61731290

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 113400000

約数和(自身を除く): 51668710

約数列:

[1, 2, 5, 10, 89, 139, 178, 278, 445, 499, 695, 890, 998, 1390, 2495, 4990, 12371, 24742, 44411, 61855, 69361, 88822, 123710, 138722, 222055, 346805, 444110, 693610, 6173129, 12346258, 30865645, 61731290]

約数ペア:

[(1, 61731290), (2, 30865645), (5, 12346258), (10, 6173129), (89, 693610), (139, 444110), (178, 346805), (278, 222055), (445, 138722), (499, 123710), (695, 88822), (890, 69361), (998, 61855), (1390, 44411), (2495, 24742), (4990, 12371)]