2019802520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1628873}}^1$

素因数の和:1628915

約数の個数: 32

約数和(自身を含む): 4691157120

約数和(自身を除く): 2671354600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1628873, 3257746, 6515492, 8144365, 13030984, 16288730, 32577460, 50495063, 65154920, 100990126, 201980252, 252475315, 403960504, 504950630, 1009901260, 2019802520]

約数ペア:

[(1, 2019802520), (2, 1009901260), (4, 504950630), (5, 403960504), (8, 252475315), (10, 201980252), (20, 100990126), (31, 65154920), (40, 50495063), (62, 32577460), (124, 16288730), (155, 13030984), (248, 8144365), (310, 6515492), (620, 3257746), (1240, 1628873)]