20983500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4663}}^1$

素因数の和:4688

約数の個数: 72

約数和(自身を含む): 66210144

約数和(自身を除く): 45226644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4663, 9326, 13989, 18652, 23315, 27978, 41967, 46630, 55956, 69945, 83934, 93260, 116575, 139890, 167868, 209835, 233150, 279780, 349725, 419670, 466300, 582875, 699450, 839340, 1049175, 1165750, 1398900, 1748625, 2098350, 2331500, 3497250, 4196700, 5245875, 6994500, 10491750, 20983500]

約数ペア:

[(1, 20983500), (2, 10491750), (3, 6994500), (4, 5245875), (5, 4196700), (6, 3497250), (9, 2331500), (10, 2098350), (12, 1748625), (15, 1398900), (18, 1165750), (20, 1049175), (25, 839340), (30, 699450), (36, 582875), (45, 466300), (50, 419670), (60, 349725), (75, 279780), (90, 233150), (100, 209835), (125, 167868), (150, 139890), (180, 116575), (225, 93260), (250, 83934), (300, 69945), (375, 55956), (450, 46630), (500, 41967), (750, 27978), (900, 23315), (1125, 18652), (1500, 13989), (2250, 9326), (4500, 4663)]