17890970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 19433830

約数列:

[1, 2, 5, 10, 17, 19, 29, 34, 38, 58, 85, 95, 145, 170, 190, 191, 290, 323, 382, 493, 551, 646, 955, 986, 1102, 1615, 1910, 2465, 2755, 3230, 3247, 3629, 4930, 5510, 5539, 6494, 7258, 9367, 11078, 16235, 18145, 18734, 27695, 32470, 36290, 46835, 55390, 61693, 93670, 94163, 105241, 123386, 188326, 210482, 308465, 470815, 526205, 616930, 941630, 1052410, 1789097, 3578194, 8945485, 17890970]

約数ペア:

[(1, 17890970), (2, 8945485), (5, 3578194), (10, 1789097), (17, 1052410), (19, 941630), (29, 616930), (34, 526205), (38, 470815), (58, 308465), (85, 210482), (95, 188326), (145, 123386), (170, 105241), (190, 94163), (191, 93670), (290, 61693), (323, 55390), (382, 46835), (493, 36290), (551, 32470), (646, 27695), (955, 18734), (986, 18145), (1102, 16235), (1615, 11078), (1910, 9367), (2465, 7258), (2755, 6494), (3230, 5539), (3247, 5510), (3629, 4930)]