8019140

素因数分解:

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

素因数の和:524

約数の個数: 48

約数和(自身を含む): 18144000

約数和(自身を除く): 10124860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 449, 470, 893, 898, 940, 1786, 1796, 2245, 3572, 4465, 4490, 8531, 8930, 8980, 17062, 17860, 21103, 34124, 42206, 42655, 84412, 85310, 105515, 170620, 211030, 400957, 422060, 801914, 1603828, 2004785, 4009570, 8019140]

約数ペア:

[(1, 8019140), (2, 4009570), (4, 2004785), (5, 1603828), (10, 801914), (19, 422060), (20, 400957), (38, 211030), (47, 170620), (76, 105515), (94, 85310), (95, 84412), (188, 42655), (190, 42206), (235, 34124), (380, 21103), (449, 17860), (470, 17062), (893, 8980), (898, 8930), (940, 8531), (1786, 4490), (1796, 4465), (2245, 3572)]