20253850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 39640320

約数和(自身を除く): 19386470

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 73, 146, 155, 179, 310, 358, 365, 730, 775, 895, 1550, 1790, 1825, 2263, 3650, 4475, 4526, 5549, 8950, 11098, 11315, 13067, 22630, 26134, 27745, 55490, 56575, 65335, 113150, 130670, 138725, 277450, 326675, 405077, 653350, 810154, 2025385, 4050770, 10126925, 20253850]

約数ペア:

[(1, 20253850), (2, 10126925), (5, 4050770), (10, 2025385), (25, 810154), (31, 653350), (50, 405077), (62, 326675), (73, 277450), (146, 138725), (155, 130670), (179, 113150), (310, 65335), (358, 56575), (365, 55490), (730, 27745), (775, 26134), (895, 22630), (1550, 13067), (1790, 11315), (1825, 11098), (2263, 8950), (3650, 5549), (4475, 4526)]