172869640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1279}}^1$

素因数の和:1430

約数の個数: 64

約数和(自身を含む): 405504000

約数和(自身を除く): 232634360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 545, 620, 872, 1090, 1240, 1279, 2180, 2558, 3379, 4360, 5116, 6395, 6758, 10232, 12790, 13516, 16895, 25580, 27032, 33790, 39649, 51160, 67580, 79298, 135160, 139411, 158596, 198245, 278822, 317192, 396490, 557644, 697055, 792980, 1115288, 1394110, 1585960, 2788220, 4321741, 5576440, 8643482, 17286964, 21608705, 34573928, 43217410, 86434820, 172869640]

約数ペア:

[(1, 172869640), (2, 86434820), (4, 43217410), (5, 34573928), (8, 21608705), (10, 17286964), (20, 8643482), (31, 5576440), (40, 4321741), (62, 2788220), (109, 1585960), (124, 1394110), (155, 1115288), (218, 792980), (248, 697055), (310, 557644), (436, 396490), (545, 317192), (620, 278822), (872, 198245), (1090, 158596), (1240, 139411), (1279, 135160), (2180, 79298), (2558, 67580), (3379, 51160), (4360, 39649), (5116, 33790), (6395, 27032), (6758, 25580), (10232, 16895), (12790, 13516)]