640728782710

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{15777611}}^1$

素因数の和:15777780

約数の個数: 32

約数和(自身を含む): 1199603395584

約数和(自身を除く): 558874612874

約数列:

[1, 2, 5, 10, 31, 62, 131, 155, 262, 310, 655, 1310, 4061, 8122, 20305, 40610, 15777611, 31555222, 78888055, 157776110, 489105941, 978211882, 2066867041, 2445529705, 4133734082, 4891059410, 10334335205, 20668670410, 64072878271, 128145756542, 320364391355, 640728782710]

約数ペア:

[(1, 640728782710), (2, 320364391355), (5, 128145756542), (10, 64072878271), (31, 20668670410), (62, 10334335205), (131, 4891059410), (155, 4133734082), (262, 2445529705), (310, 2066867041), (655, 978211882), (1310, 489105941), (4061, 157776110), (8122, 78888055), (20305, 31555222), (40610, 15777611)]