20584025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 34718016

約数和(自身を除く): 14133991

約数列:

[1, 5, 7, 11, 17, 25, 35, 37, 55, 77, 85, 119, 175, 185, 187, 259, 275, 289, 385, 407, 425, 595, 629, 925, 935, 1295, 1309, 1445, 1925, 2023, 2035, 2849, 2975, 3145, 3179, 4403, 4675, 6475, 6545, 6919, 7225, 10115, 10175, 10693, 14245, 15725, 15895, 22015, 22253, 32725, 34595, 48433, 50575, 53465, 71225, 74851, 79475, 110075, 111265, 117623, 172975, 242165, 267325, 374255, 556325, 588115, 823361, 1210825, 1871275, 2940575, 4116805, 20584025]

約数ペア:

[(1, 20584025), (5, 4116805), (7, 2940575), (11, 1871275), (17, 1210825), (25, 823361), (35, 588115), (37, 556325), (55, 374255), (77, 267325), (85, 242165), (119, 172975), (175, 117623), (185, 111265), (187, 110075), (259, 79475), (275, 74851), (289, 71225), (385, 53465), (407, 50575), (425, 48433), (595, 34595), (629, 32725), (925, 22253), (935, 22015), (1295, 15895), (1309, 15725), (1445, 14245), (1925, 10693), (2023, 10175), (2035, 10115), (2849, 7225), (2975, 6919), (3145, 6545), (3179, 6475), (4403, 4675)]