2017208120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{6581}}^1$

素因数の和:6768

約数の個数: 64

約数和(自身を含む): 4644259200

約数和(自身を除く): 2627051080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 97, 158, 194, 316, 388, 395, 485, 632, 776, 790, 970, 1580, 1940, 3160, 3880, 6581, 7663, 13162, 15326, 26324, 30652, 32905, 38315, 52648, 61304, 65810, 76630, 131620, 153260, 263240, 306520, 519899, 638357, 1039798, 1276714, 2079596, 2553428, 2599495, 3191785, 4159192, 5106856, 5198990, 6383570, 10397980, 12767140, 20795960, 25534280, 50430203, 100860406, 201720812, 252151015, 403441624, 504302030, 1008604060, 2017208120]

約数ペア:

[(1, 2017208120), (2, 1008604060), (4, 504302030), (5, 403441624), (8, 252151015), (10, 201720812), (20, 100860406), (40, 50430203), (79, 25534280), (97, 20795960), (158, 12767140), (194, 10397980), (316, 6383570), (388, 5198990), (395, 5106856), (485, 4159192), (632, 3191785), (776, 2599495), (790, 2553428), (970, 2079596), (1580, 1276714), (1940, 1039798), (3160, 638357), (3880, 519899), (6581, 306520), (7663, 263240), (13162, 153260), (15326, 131620), (26324, 76630), (30652, 65810), (32905, 61304), (38315, 52648)]