20851550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 41783040

約数和(自身を除く): 20931490

約数列:

[1, 2, 5, 10, 19, 25, 38, 47, 50, 94, 95, 190, 235, 467, 470, 475, 893, 934, 950, 1175, 1786, 2335, 2350, 4465, 4670, 8873, 8930, 11675, 17746, 21949, 22325, 23350, 43898, 44365, 44650, 88730, 109745, 219490, 221825, 417031, 443650, 548725, 834062, 1097450, 2085155, 4170310, 10425775, 20851550]

約数ペア:

[(1, 20851550), (2, 10425775), (5, 4170310), (10, 2085155), (19, 1097450), (25, 834062), (38, 548725), (47, 443650), (50, 417031), (94, 221825), (95, 219490), (190, 109745), (235, 88730), (467, 44650), (470, 44365), (475, 43898), (893, 23350), (934, 22325), (950, 21949), (1175, 17746), (1786, 11675), (2335, 8930), (2350, 8873), (4465, 4670)]