19905450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1013}}^1$

素因数の和:1159

約数の個数: 48

約数和(自身を含む): 49791456

約数和(自身を除く): 29886006

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 131, 150, 262, 393, 655, 786, 1013, 1310, 1965, 2026, 3039, 3275, 3930, 5065, 6078, 6550, 9825, 10130, 15195, 19650, 25325, 30390, 50650, 75975, 132703, 151950, 265406, 398109, 663515, 796218, 1327030, 1990545, 3317575, 3981090, 6635150, 9952725, 19905450]

約数ペア:

[(1, 19905450), (2, 9952725), (3, 6635150), (5, 3981090), (6, 3317575), (10, 1990545), (15, 1327030), (25, 796218), (30, 663515), (50, 398109), (75, 265406), (131, 151950), (150, 132703), (262, 75975), (393, 50650), (655, 30390), (786, 25325), (1013, 19650), (1310, 15195), (1965, 10130), (2026, 9825), (3039, 6550), (3275, 6078), (3930, 5065)]