890243420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{2311}}^1$

素因数の和:2451

約数の個数: 96

約数和(自身を含む): 2181344256

約数和(自身を除く): 1291100836

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 103, 110, 170, 187, 206, 220, 340, 374, 412, 515, 748, 935, 1030, 1133, 1751, 1870, 2060, 2266, 2311, 3502, 3740, 4532, 4622, 5665, 7004, 8755, 9244, 11330, 11555, 17510, 19261, 22660, 23110, 25421, 35020, 38522, 39287, 46220, 50842, 77044, 78574, 96305, 101684, 127105, 157148, 192610, 196435, 238033, 254210, 385220, 392870, 432157, 476066, 508420, 785740, 864314, 952132, 1190165, 1728628, 2160785, 2380330, 2618363, 4046561, 4321570, 4760660, 5236726, 8093122, 8643140, 10473452, 13091815, 16186244, 20232805, 26183630, 40465610, 44512171, 52367260, 80931220, 89024342, 178048684, 222560855, 445121710, 890243420]

約数ペア:

[(1, 890243420), (2, 445121710), (4, 222560855), (5, 178048684), (10, 89024342), (11, 80931220), (17, 52367260), (20, 44512171), (22, 40465610), (34, 26183630), (44, 20232805), (55, 16186244), (68, 13091815), (85, 10473452), (103, 8643140), (110, 8093122), (170, 5236726), (187, 4760660), (206, 4321570), (220, 4046561), (340, 2618363), (374, 2380330), (412, 2160785), (515, 1728628), (748, 1190165), (935, 952132), (1030, 864314), (1133, 785740), (1751, 508420), (1870, 476066), (2060, 432157), (2266, 392870), (2311, 385220), (3502, 254210), (3740, 238033), (4532, 196435), (4622, 192610), (5665, 157148), (7004, 127105), (8755, 101684), (9244, 96305), (11330, 78574), (11555, 77044), (17510, 50842), (19261, 46220), (22660, 39287), (23110, 38522), (25421, 35020)]