9998780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 23417856

約数和(自身を除く): 13419076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 967, 1034, 1934, 2068, 2585, 3868, 4835, 5170, 9670, 10340, 10637, 19340, 21274, 42548, 45449, 53185, 90898, 106370, 181796, 212740, 227245, 454490, 499939, 908980, 999878, 1999756, 2499695, 4999390, 9998780]

約数ペア:

[(1, 9998780), (2, 4999390), (4, 2499695), (5, 1999756), (10, 999878), (11, 908980), (20, 499939), (22, 454490), (44, 227245), (47, 212740), (55, 181796), (94, 106370), (110, 90898), (188, 53185), (220, 45449), (235, 42548), (470, 21274), (517, 19340), (940, 10637), (967, 10340), (1034, 9670), (1934, 5170), (2068, 4835), (2585, 3868)]