18578960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1$

素因数の和:768

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 29632240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 719, 760, 1292, 1360, 1438, 1520, 1615, 2584, 2876, 3230, 3595, 5168, 5752, 6460, 7190, 11504, 12223, 12920, 13661, 14380, 24446, 25840, 27322, 28760, 48892, 54644, 57520, 61115, 68305, 97784, 109288, 122230, 136610, 195568, 218576, 232237, 244460, 273220, 464474, 488920, 546440, 928948, 977840, 1092880, 1161185, 1857896, 2322370, 3715792, 4644740, 9289480, 18578960]

約数ペア:

[(1, 18578960), (2, 9289480), (4, 4644740), (5, 3715792), (8, 2322370), (10, 1857896), (16, 1161185), (17, 1092880), (19, 977840), (20, 928948), (34, 546440), (38, 488920), (40, 464474), (68, 273220), (76, 244460), (80, 232237), (85, 218576), (95, 195568), (136, 136610), (152, 122230), (170, 109288), (190, 97784), (272, 68305), (304, 61115), (323, 57520), (340, 54644), (380, 48892), (646, 28760), (680, 27322), (719, 25840), (760, 24446), (1292, 14380), (1360, 13661), (1438, 12920), (1520, 12223), (1615, 11504), (2584, 7190), (2876, 6460), (3230, 5752), (3595, 5168)]