31878850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 62067456

約数和(自身を除く): 30188606

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 131, 155, 157, 262, 310, 314, 655, 775, 785, 1310, 1550, 1570, 3275, 3925, 4061, 4867, 6550, 7850, 8122, 9734, 20305, 20567, 24335, 40610, 41134, 48670, 101525, 102835, 121675, 203050, 205670, 243350, 514175, 637577, 1028350, 1275154, 3187885, 6375770, 15939425, 31878850]

約数ペア:

[(1, 31878850), (2, 15939425), (5, 6375770), (10, 3187885), (25, 1275154), (31, 1028350), (50, 637577), (62, 514175), (131, 243350), (155, 205670), (157, 203050), (262, 121675), (310, 102835), (314, 101525), (655, 48670), (775, 41134), (785, 40610), (1310, 24335), (1550, 20567), (1570, 20305), (3275, 9734), (3925, 8122), (4061, 7850), (4867, 6550)]