19967700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{659}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 58433760

約数和(自身を除く): 38466060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 101, 150, 202, 300, 303, 404, 505, 606, 659, 1010, 1212, 1318, 1515, 1977, 2020, 2525, 2636, 3030, 3295, 3954, 5050, 6060, 6590, 7575, 7908, 9885, 10100, 13180, 15150, 16475, 19770, 30300, 32950, 39540, 49425, 65900, 66559, 98850, 133118, 197700, 199677, 266236, 332795, 399354, 665590, 798708, 998385, 1331180, 1663975, 1996770, 3327950, 3993540, 4991925, 6655900, 9983850, 19967700]

約数ペア:

[(1, 19967700), (2, 9983850), (3, 6655900), (4, 4991925), (5, 3993540), (6, 3327950), (10, 1996770), (12, 1663975), (15, 1331180), (20, 998385), (25, 798708), (30, 665590), (50, 399354), (60, 332795), (75, 266236), (100, 199677), (101, 197700), (150, 133118), (202, 98850), (300, 66559), (303, 65900), (404, 49425), (505, 39540), (606, 32950), (659, 30300), (1010, 19770), (1212, 16475), (1318, 15150), (1515, 13180), (1977, 10100), (2020, 9885), (2525, 7908), (2636, 7575), (3030, 6590), (3295, 6060), (3954, 5050)]