31388648

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 60397920

約数和(自身を除く): 29009272

約数列:

[1, 2, 4, 8, 61, 122, 131, 244, 262, 488, 491, 524, 982, 1048, 1964, 3928, 7991, 15982, 29951, 31964, 59902, 63928, 64321, 119804, 128642, 239608, 257284, 514568, 3923581, 7847162, 15694324, 31388648]

約数ペア:

[(1, 31388648), (2, 15694324), (4, 7847162), (8, 3923581), (61, 514568), (122, 257284), (131, 239608), (244, 128642), (262, 119804), (488, 64321), (491, 63928), (524, 59902), (982, 31964), (1048, 29951), (1964, 15982), (3928, 7991)]