20838750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{5557}}^1$

素因数の和:5582

約数の個数: 40

約数和(自身を含む): 52089576

約数和(自身を除く): 31250826

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 750, 1250, 1875, 3750, 5557, 11114, 16671, 27785, 33342, 55570, 83355, 138925, 166710, 277850, 416775, 694625, 833550, 1389250, 2083875, 3473125, 4167750, 6946250, 10419375, 20838750]

約数ペア:

[(1, 20838750), (2, 10419375), (3, 6946250), (5, 4167750), (6, 3473125), (10, 2083875), (15, 1389250), (25, 833550), (30, 694625), (50, 416775), (75, 277850), (125, 166710), (150, 138925), (250, 83355), (375, 55570), (625, 33342), (750, 27785), (1250, 16671), (1875, 11114), (3750, 5557)]