320220828

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{769}}^1$

素因数の和:1091

約数の個数: 72

約数和(自身を含む): 832431600

約数和(自身を除く): 512210772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 269, 387, 516, 538, 769, 774, 807, 1076, 1538, 1548, 1614, 2307, 2421, 3076, 3228, 4614, 4842, 6921, 9228, 9684, 11567, 13842, 23134, 27684, 33067, 34701, 46268, 66134, 69402, 99201, 104103, 132268, 138804, 198402, 206861, 208206, 297603, 396804, 413722, 416412, 595206, 620583, 827444, 1190412, 1241166, 1861749, 2482332, 3723498, 7446996, 8895023, 17790046, 26685069, 35580092, 53370138, 80055207, 106740276, 160110414, 320220828]

約数ペア:

[(1, 320220828), (2, 160110414), (3, 106740276), (4, 80055207), (6, 53370138), (9, 35580092), (12, 26685069), (18, 17790046), (36, 8895023), (43, 7446996), (86, 3723498), (129, 2482332), (172, 1861749), (258, 1241166), (269, 1190412), (387, 827444), (516, 620583), (538, 595206), (769, 416412), (774, 413722), (807, 396804), (1076, 297603), (1538, 208206), (1548, 206861), (1614, 198402), (2307, 138804), (2421, 132268), (3076, 104103), (3228, 99201), (4614, 69402), (4842, 66134), (6921, 46268), (9228, 34701), (9684, 33067), (11567, 27684), (13842, 23134)]