20179280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{997}}^1$

素因数の和:1044

約数の個数: 80

約数和(自身を含む): 53460864

約数和(自身を除く): 33281584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 997, 1012, 1265, 1840, 1994, 2024, 2530, 3988, 4048, 4985, 5060, 7976, 9970, 10120, 10967, 15952, 19940, 20240, 21934, 22931, 39880, 43868, 45862, 54835, 79760, 87736, 91724, 109670, 114655, 175472, 183448, 219340, 229310, 252241, 366896, 438680, 458620, 504482, 877360, 917240, 1008964, 1261205, 1834480, 2017928, 2522410, 4035856, 5044820, 10089640, 20179280]

約数ペア:

[(1, 20179280), (2, 10089640), (4, 5044820), (5, 4035856), (8, 2522410), (10, 2017928), (11, 1834480), (16, 1261205), (20, 1008964), (22, 917240), (23, 877360), (40, 504482), (44, 458620), (46, 438680), (55, 366896), (80, 252241), (88, 229310), (92, 219340), (110, 183448), (115, 175472), (176, 114655), (184, 109670), (220, 91724), (230, 87736), (253, 79760), (368, 54835), (440, 45862), (460, 43868), (506, 39880), (880, 22931), (920, 21934), (997, 20240), (1012, 19940), (1265, 15952), (1840, 10967), (1994, 10120), (2024, 9970), (2530, 7976), (3988, 5060), (4048, 4985)]