681445576

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{328883}}^1$

素因数の和:328933

約数の個数: 32

約数和(自身を含む): 1499711040

約数和(自身を除く): 818265464

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 328883, 657766, 1315532, 2302181, 2631064, 4604362, 9208724, 12168671, 18417448, 24337342, 48674684, 85180697, 97349368, 170361394, 340722788, 681445576]

約数ペア:

[(1, 681445576), (2, 340722788), (4, 170361394), (7, 97349368), (8, 85180697), (14, 48674684), (28, 24337342), (37, 18417448), (56, 12168671), (74, 9208724), (148, 4604362), (259, 2631064), (296, 2302181), (518, 1315532), (1036, 657766), (2072, 328883)]