28124180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 72441600

約数和(自身を除く): 44317420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 97, 109, 133, 140, 190, 194, 218, 266, 380, 388, 436, 485, 532, 545, 665, 679, 763, 970, 1090, 1330, 1358, 1526, 1843, 1940, 2071, 2180, 2660, 2716, 3052, 3395, 3686, 3815, 4142, 6790, 7372, 7630, 8284, 9215, 10355, 10573, 12901, 13580, 14497, 15260, 18430, 20710, 21146, 25802, 28994, 36860, 41420, 42292, 51604, 52865, 57988, 64505, 72485, 74011, 105730, 129010, 144970, 148022, 200887, 211460, 258020, 289940, 296044, 370055, 401774, 740110, 803548, 1004435, 1406209, 1480220, 2008870, 2812418, 4017740, 5624836, 7031045, 14062090, 28124180]

約数ペア:

[(1, 28124180), (2, 14062090), (4, 7031045), (5, 5624836), (7, 4017740), (10, 2812418), (14, 2008870), (19, 1480220), (20, 1406209), (28, 1004435), (35, 803548), (38, 740110), (70, 401774), (76, 370055), (95, 296044), (97, 289940), (109, 258020), (133, 211460), (140, 200887), (190, 148022), (194, 144970), (218, 129010), (266, 105730), (380, 74011), (388, 72485), (436, 64505), (485, 57988), (532, 52865), (545, 51604), (665, 42292), (679, 41420), (763, 36860), (970, 28994), (1090, 25802), (1330, 21146), (1358, 20710), (1526, 18430), (1843, 15260), (1940, 14497), (2071, 13580), (2180, 12901), (2660, 10573), (2716, 10355), (3052, 9215), (3395, 8284), (3686, 7630), (3815, 7372), (4142, 6790)]