3888890890

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1\times {\mathrm{12421}}^1$

素因数の和:12798

約数の個数: 32

約数和(自身を含む): 7083521280

約数和(自身を除く): 3194630390

約数列:

[1, 2, 5, 10, 131, 239, 262, 478, 655, 1195, 1310, 2390, 12421, 24842, 31309, 62105, 62618, 124210, 156545, 313090, 1627151, 2968619, 3254302, 5937238, 8135755, 14843095, 16271510, 29686190, 388889089, 777778178, 1944445445, 3888890890]

約数ペア:

[(1, 3888890890), (2, 1944445445), (5, 777778178), (10, 388889089), (131, 29686190), (239, 16271510), (262, 14843095), (478, 8135755), (655, 5937238), (1195, 3254302), (1310, 2968619), (2390, 1627151), (12421, 313090), (24842, 156545), (31309, 124210), (62105, 62618)]