1990950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1021}}^1$

素因数の和:1049

約数の個数: 48

約数和(自身を含む): 5322576

約数和(自身を除く): 3331626

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1021, 1950, 2042, 3063, 5105, 6126, 10210, 13273, 15315, 25525, 26546, 30630, 39819, 51050, 66365, 76575, 79638, 132730, 153150, 199095, 331825, 398190, 663650, 995475, 1990950]

約数ペア:

[(1, 1990950), (2, 995475), (3, 663650), (5, 398190), (6, 331825), (10, 199095), (13, 153150), (15, 132730), (25, 79638), (26, 76575), (30, 66365), (39, 51050), (50, 39819), (65, 30630), (75, 26546), (78, 25525), (130, 15315), (150, 13273), (195, 10210), (325, 6126), (390, 5105), (650, 3063), (975, 2042), (1021, 1950)]