8989960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 23425920

約数和(自身を除く): 14435960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 331, 388, 485, 662, 679, 776, 970, 1324, 1358, 1655, 1940, 2317, 2648, 2716, 3310, 3395, 3880, 4634, 5432, 6620, 6790, 9268, 11585, 13240, 13580, 18536, 23170, 27160, 32107, 46340, 64214, 92680, 128428, 160535, 224749, 256856, 321070, 449498, 642140, 898996, 1123745, 1284280, 1797992, 2247490, 4494980, 8989960]

約数ペア:

[(1, 8989960), (2, 4494980), (4, 2247490), (5, 1797992), (7, 1284280), (8, 1123745), (10, 898996), (14, 642140), (20, 449498), (28, 321070), (35, 256856), (40, 224749), (56, 160535), (70, 128428), (97, 92680), (140, 64214), (194, 46340), (280, 32107), (331, 27160), (388, 23170), (485, 18536), (662, 13580), (679, 13240), (776, 11585), (970, 9268), (1324, 6790), (1358, 6620), (1655, 5432), (1940, 4634), (2317, 3880), (2648, 3395), (2716, 3310)]