39959775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 78459264

約数和(自身を除く): 38499489

約数列:

[1, 3, 5, 9, 15, 17, 25, 31, 45, 51, 75, 85, 93, 153, 155, 225, 255, 279, 337, 425, 465, 527, 765, 775, 1011, 1275, 1395, 1581, 1685, 2325, 2635, 3033, 3825, 4743, 5055, 5729, 6975, 7905, 8425, 10447, 13175, 15165, 17187, 23715, 25275, 28645, 31341, 39525, 51561, 52235, 75825, 85935, 94023, 118575, 143225, 156705, 177599, 257805, 261175, 429675, 470115, 532797, 783525, 887995, 1289025, 1598391, 2350575, 2663985, 4439975, 7991955, 13319925, 39959775]

約数ペア:

[(1, 39959775), (3, 13319925), (5, 7991955), (9, 4439975), (15, 2663985), (17, 2350575), (25, 1598391), (31, 1289025), (45, 887995), (51, 783525), (75, 532797), (85, 470115), (93, 429675), (153, 261175), (155, 257805), (225, 177599), (255, 156705), (279, 143225), (337, 118575), (425, 94023), (465, 85935), (527, 75825), (765, 52235), (775, 51561), (1011, 39525), (1275, 31341), (1395, 28645), (1581, 25275), (1685, 23715), (2325, 17187), (2635, 15165), (3033, 13175), (3825, 10447), (4743, 8425), (5055, 7905), (5729, 6975)]