81276840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{225769}}^1$

素因数の和:225786

約数の個数: 48

約数和(自身を含む): 264150900

約数和(自身を除く): 182874060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 225769, 451538, 677307, 903076, 1128845, 1354614, 1806152, 2031921, 2257690, 2709228, 3386535, 4063842, 4515380, 5418456, 6773070, 8127684, 9030760, 10159605, 13546140, 16255368, 20319210, 27092280, 40638420, 81276840]

約数ペア:

[(1, 81276840), (2, 40638420), (3, 27092280), (4, 20319210), (5, 16255368), (6, 13546140), (8, 10159605), (9, 9030760), (10, 8127684), (12, 6773070), (15, 5418456), (18, 4515380), (20, 4063842), (24, 3386535), (30, 2709228), (36, 2257690), (40, 2031921), (45, 1806152), (60, 1354614), (72, 1128845), (90, 903076), (120, 677307), (180, 451538), (360, 225769)]