890256140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 1994194944

約数和(自身を除く): 1103938804

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 137, 155, 188, 223, 235, 274, 310, 446, 470, 548, 620, 685, 892, 940, 1115, 1370, 1457, 2230, 2740, 2914, 4247, 4460, 5828, 6439, 6913, 7285, 8494, 10481, 12878, 13826, 14570, 16988, 20962, 21235, 25756, 27652, 29140, 30551, 32195, 34565, 41924, 42470, 52405, 61102, 64390, 69130, 84940, 104810, 122204, 128780, 138260, 152755, 199609, 209620, 305510, 324911, 399218, 611020, 649822, 798436, 947081, 998045, 1299644, 1435897, 1624555, 1894162, 1996090, 2871794, 3249110, 3788324, 3992180, 4735405, 5743588, 6498220, 7179485, 9470810, 14358970, 18941620, 28717940, 44512807, 89025614, 178051228, 222564035, 445128070, 890256140]

約数ペア:

[(1, 890256140), (2, 445128070), (4, 222564035), (5, 178051228), (10, 89025614), (20, 44512807), (31, 28717940), (47, 18941620), (62, 14358970), (94, 9470810), (124, 7179485), (137, 6498220), (155, 5743588), (188, 4735405), (223, 3992180), (235, 3788324), (274, 3249110), (310, 2871794), (446, 1996090), (470, 1894162), (548, 1624555), (620, 1435897), (685, 1299644), (892, 998045), (940, 947081), (1115, 798436), (1370, 649822), (1457, 611020), (2230, 399218), (2740, 324911), (2914, 305510), (4247, 209620), (4460, 199609), (5828, 152755), (6439, 138260), (6913, 128780), (7285, 122204), (8494, 104810), (10481, 84940), (12878, 69130), (13826, 64390), (14570, 61102), (16988, 52405), (20962, 42470), (21235, 41924), (25756, 34565), (27652, 32195), (29140, 30551)]