645012

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 1834560

約数和(自身を除く): 1189548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 41, 46, 57, 69, 76, 82, 92, 114, 123, 138, 164, 171, 207, 228, 246, 276, 342, 369, 414, 437, 492, 684, 738, 779, 828, 874, 943, 1311, 1476, 1558, 1748, 1886, 2337, 2622, 2829, 3116, 3772, 3933, 4674, 5244, 5658, 7011, 7866, 8487, 9348, 11316, 14022, 15732, 16974, 17917, 28044, 33948, 35834, 53751, 71668, 107502, 161253, 215004, 322506, 645012]

約数ペア:

[(1, 645012), (2, 322506), (3, 215004), (4, 161253), (6, 107502), (9, 71668), (12, 53751), (18, 35834), (19, 33948), (23, 28044), (36, 17917), (38, 16974), (41, 15732), (46, 14022), (57, 11316), (69, 9348), (76, 8487), (82, 7866), (92, 7011), (114, 5658), (123, 5244), (138, 4674), (164, 3933), (171, 3772), (207, 3116), (228, 2829), (246, 2622), (276, 2337), (342, 1886), (369, 1748), (414, 1558), (437, 1476), (492, 1311), (684, 943), (738, 874), (779, 828)]