20377789495

素因数分解:

$5^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{90703}}^1$

素因数の和:90860

約数の個数: 32

約数和(自身を含む): 28735027200

約数和(自身を除く): 8357237705

約数列:

[1, 5, 7, 35, 49, 131, 245, 343, 655, 917, 1715, 4585, 6419, 32095, 44933, 90703, 224665, 453515, 634921, 3174605, 4444447, 11882093, 22222235, 31111129, 59410465, 83174651, 155555645, 415873255, 582222557, 2911112785, 4075557899, 20377789495]

約数ペア:

[(1, 20377789495), (5, 4075557899), (7, 2911112785), (35, 582222557), (49, 415873255), (131, 155555645), (245, 83174651), (343, 59410465), (655, 31111129), (917, 22222235), (1715, 11882093), (4585, 4444447), (6419, 3174605), (32095, 634921), (44933, 453515), (90703, 224665)]