1330840

素因数分解:

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

素因数の和:129

約数の個数: 64

約数和(自身を含む): 3528000

約数和(自身を除く): 2197160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 97, 98, 140, 194, 196, 245, 280, 343, 388, 392, 485, 490, 679, 686, 776, 970, 980, 1358, 1372, 1715, 1940, 1960, 2716, 2744, 3395, 3430, 3880, 4753, 5432, 6790, 6860, 9506, 13580, 13720, 19012, 23765, 27160, 33271, 38024, 47530, 66542, 95060, 133084, 166355, 190120, 266168, 332710, 665420, 1330840]

約数ペア:

[(1, 1330840), (2, 665420), (4, 332710), (5, 266168), (7, 190120), (8, 166355), (10, 133084), (14, 95060), (20, 66542), (28, 47530), (35, 38024), (40, 33271), (49, 27160), (56, 23765), (70, 19012), (97, 13720), (98, 13580), (140, 9506), (194, 6860), (196, 6790), (245, 5432), (280, 4753), (343, 3880), (388, 3430), (392, 3395), (485, 2744), (490, 2716), (679, 1960), (686, 1940), (776, 1715), (970, 1372), (980, 1358)]