31960980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 101741640

約数和(自身を除く): 69780660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 109, 135, 162, 180, 181, 218, 270, 324, 327, 362, 405, 436, 540, 543, 545, 654, 724, 810, 905, 981, 1086, 1090, 1308, 1620, 1629, 1635, 1810, 1962, 2172, 2180, 2715, 2943, 3258, 3270, 3620, 3924, 4887, 4905, 5430, 5886, 6516, 6540, 8145, 8829, 9774, 9810, 10860, 11772, 14661, 14715, 16290, 17658, 19548, 19620, 19729, 24435, 29322, 29430, 32580, 35316, 39458, 44145, 48870, 58644, 58860, 59187, 73305, 78916, 88290, 97740, 98645, 118374, 146610, 176580, 177561, 197290, 236748, 293220, 295935, 355122, 394580, 532683, 591870, 710244, 887805, 1065366, 1183740, 1598049, 1775610, 2130732, 2663415, 3196098, 3551220, 5326830, 6392196, 7990245, 10653660, 15980490, 31960980]

約数ペア:

[(1, 31960980), (2, 15980490), (3, 10653660), (4, 7990245), (5, 6392196), (6, 5326830), (9, 3551220), (10, 3196098), (12, 2663415), (15, 2130732), (18, 1775610), (20, 1598049), (27, 1183740), (30, 1065366), (36, 887805), (45, 710244), (54, 591870), (60, 532683), (81, 394580), (90, 355122), (108, 295935), (109, 293220), (135, 236748), (162, 197290), (180, 177561), (181, 176580), (218, 146610), (270, 118374), (324, 98645), (327, 97740), (362, 88290), (405, 78916), (436, 73305), (540, 59187), (543, 58860), (545, 58644), (654, 48870), (724, 44145), (810, 39458), (905, 35316), (981, 32580), (1086, 29430), (1090, 29322), (1308, 24435), (1620, 19729), (1629, 19620), (1635, 19548), (1810, 17658), (1962, 16290), (2172, 14715), (2180, 14661), (2715, 11772), (2943, 10860), (3258, 9810), (3270, 9774), (3620, 8829), (3924, 8145), (4887, 6540), (4905, 6516), (5430, 5886)]