28699880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3433}}^1$

素因数の和:3474

約数の個数: 64

約数和(自身を含む): 74174400

約数和(自身を除く): 45474520

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3433, 4180, 6866, 8360, 13732, 17165, 27464, 34330, 37763, 65227, 68660, 75526, 130454, 137320, 151052, 188815, 260908, 302104, 326135, 377630, 521816, 652270, 717497, 755260, 1304540, 1434994, 1510520, 2609080, 2869988, 3587485, 5739976, 7174970, 14349940, 28699880]

約数ペア:

[(1, 28699880), (2, 14349940), (4, 7174970), (5, 5739976), (8, 3587485), (10, 2869988), (11, 2609080), (19, 1510520), (20, 1434994), (22, 1304540), (38, 755260), (40, 717497), (44, 652270), (55, 521816), (76, 377630), (88, 326135), (95, 302104), (110, 260908), (152, 188815), (190, 151052), (209, 137320), (220, 130454), (380, 75526), (418, 68660), (440, 65227), (760, 37763), (836, 34330), (1045, 27464), (1672, 17165), (2090, 13732), (3433, 8360), (4180, 6866)]