31491990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2287}}^1$

素因数の和:2323

約数の個数: 80

約数和(自身を含む): 89698752

約数和(自身を除く): 58206762

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 2287, 2295, 2754, 4574, 4590, 6861, 6885, 11435, 13722, 13770, 20583, 22870, 34305, 38879, 41166, 61749, 68610, 77758, 102915, 116637, 123498, 185247, 194395, 205830, 233274, 308745, 349911, 370494, 388790, 583185, 617490, 699822, 926235, 1049733, 1166370, 1749555, 1852470, 2099466, 3149199, 3499110, 5248665, 6298398, 10497330, 15745995, 31491990]

約数ペア:

[(1, 31491990), (2, 15745995), (3, 10497330), (5, 6298398), (6, 5248665), (9, 3499110), (10, 3149199), (15, 2099466), (17, 1852470), (18, 1749555), (27, 1166370), (30, 1049733), (34, 926235), (45, 699822), (51, 617490), (54, 583185), (81, 388790), (85, 370494), (90, 349911), (102, 308745), (135, 233274), (153, 205830), (162, 194395), (170, 185247), (255, 123498), (270, 116637), (306, 102915), (405, 77758), (459, 68610), (510, 61749), (765, 41166), (810, 38879), (918, 34305), (1377, 22870), (1530, 20583), (2287, 13770), (2295, 13722), (2754, 11435), (4574, 6885), (4590, 6861)]