81780986

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{1283}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 146067840

約数和(自身を除く): 64286854

約数列:

[1, 2, 7, 14, 29, 58, 157, 203, 314, 406, 1099, 1283, 2198, 2566, 4553, 8981, 9106, 17962, 31871, 37207, 63742, 74414, 201431, 260449, 402862, 520898, 1410017, 2820034, 5841499, 11682998, 40890493, 81780986]

約数ペア:

[(1, 81780986), (2, 40890493), (7, 11682998), (14, 5841499), (29, 2820034), (58, 1410017), (157, 520898), (203, 402862), (314, 260449), (406, 201431), (1099, 74414), (1283, 63742), (2198, 37207), (2566, 31871), (4553, 17962), (8981, 9106)]