87581450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 205567200

約数和(自身を除く): 117985750

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 25, 29, 34, 38, 50, 55, 58, 85, 95, 110, 145, 170, 187, 190, 209, 275, 289, 290, 319, 323, 374, 418, 425, 475, 493, 550, 551, 578, 638, 646, 725, 850, 935, 950, 986, 1045, 1102, 1445, 1450, 1595, 1615, 1870, 2090, 2465, 2755, 2890, 3179, 3190, 3230, 3553, 4675, 4930, 5225, 5423, 5491, 5510, 6061, 6358, 7106, 7225, 7975, 8075, 8381, 9350, 9367, 10450, 10846, 10982, 12122, 12325, 13775, 14450, 15895, 15950, 16150, 16762, 17765, 18734, 24650, 27115, 27455, 27550, 30305, 31790, 35530, 41905, 46835, 54230, 54910, 60401, 60610, 79475, 83810, 88825, 92191, 93670, 103037, 120802, 135575, 137275, 151525, 158950, 159239, 177650, 184382, 206074, 209525, 234175, 271150, 274550, 302005, 303050, 318478, 419050, 460955, 468350, 515185, 604010, 796195, 921910, 1030370, 1510025, 1592390, 1751629, 2304775, 2575925, 3020050, 3503258, 3980975, 4609550, 5151850, 7961950, 8758145, 17516290, 43790725, 87581450]

約数ペア:

[(1, 87581450), (2, 43790725), (5, 17516290), (10, 8758145), (11, 7961950), (17, 5151850), (19, 4609550), (22, 3980975), (25, 3503258), (29, 3020050), (34, 2575925), (38, 2304775), (50, 1751629), (55, 1592390), (58, 1510025), (85, 1030370), (95, 921910), (110, 796195), (145, 604010), (170, 515185), (187, 468350), (190, 460955), (209, 419050), (275, 318478), (289, 303050), (290, 302005), (319, 274550), (323, 271150), (374, 234175), (418, 209525), (425, 206074), (475, 184382), (493, 177650), (550, 159239), (551, 158950), (578, 151525), (638, 137275), (646, 135575), (725, 120802), (850, 103037), (935, 93670), (950, 92191), (986, 88825), (1045, 83810), (1102, 79475), (1445, 60610), (1450, 60401), (1595, 54910), (1615, 54230), (1870, 46835), (2090, 41905), (2465, 35530), (2755, 31790), (2890, 30305), (3179, 27550), (3190, 27455), (3230, 27115), (3553, 24650), (4675, 18734), (4930, 17765), (5225, 16762), (5423, 16150), (5491, 15950), (5510, 15895), (6061, 14450), (6358, 13775), (7106, 12325), (7225, 12122), (7975, 10982), (8075, 10846), (8381, 10450), (9350, 9367)]