20047850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 40176000

約数和(自身を除く): 20128150

約数列:

[1, 2, 5, 10, 19, 25, 38, 47, 50, 94, 95, 190, 235, 449, 470, 475, 893, 898, 950, 1175, 1786, 2245, 2350, 4465, 4490, 8531, 8930, 11225, 17062, 21103, 22325, 22450, 42206, 42655, 44650, 85310, 105515, 211030, 213275, 400957, 426550, 527575, 801914, 1055150, 2004785, 4009570, 10023925, 20047850]

約数ペア:

[(1, 20047850), (2, 10023925), (5, 4009570), (10, 2004785), (19, 1055150), (25, 801914), (38, 527575), (47, 426550), (50, 400957), (94, 213275), (95, 211030), (190, 105515), (235, 85310), (449, 44650), (470, 42655), (475, 42206), (893, 22450), (898, 22325), (950, 21103), (1175, 17062), (1786, 11225), (2245, 8930), (2350, 8531), (4465, 4490)]