745492075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 1066391568

約数和(自身を除く): 320899493

約数列:

[1, 5, 17, 19, 25, 43, 85, 95, 113, 215, 323, 361, 425, 475, 565, 731, 817, 1075, 1615, 1805, 1921, 2147, 2825, 3655, 4085, 4859, 6137, 8075, 9025, 9605, 10735, 13889, 15523, 18275, 20425, 24295, 30685, 36499, 40793, 48025, 53675, 69445, 77615, 82603, 92321, 121475, 153425, 182495, 203965, 263891, 347225, 388075, 413015, 461605, 693481, 912475, 1019825, 1319455, 1569457, 1754099, 2065075, 2308025, 3467405, 6597275, 7847285, 8770495, 17337025, 29819683, 39236425, 43852475, 149098415, 745492075]

約数ペア:

[(1, 745492075), (5, 149098415), (17, 43852475), (19, 39236425), (25, 29819683), (43, 17337025), (85, 8770495), (95, 7847285), (113, 6597275), (215, 3467405), (323, 2308025), (361, 2065075), (425, 1754099), (475, 1569457), (565, 1319455), (731, 1019825), (817, 912475), (1075, 693481), (1615, 461605), (1805, 413015), (1921, 388075), (2147, 347225), (2825, 263891), (3655, 203965), (4085, 182495), (4859, 153425), (6137, 121475), (8075, 92321), (9025, 82603), (9605, 77615), (10735, 69445), (13889, 53675), (15523, 48025), (18275, 40793), (20425, 36499), (24295, 30685)]