28049740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 33196340

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 433, 790, 820, 866, 1580, 1732, 2165, 3239, 4330, 6478, 8660, 12956, 16195, 17753, 32390, 34207, 35506, 64780, 68414, 71012, 88765, 136828, 171035, 177530, 342070, 355060, 684140, 1402487, 2804974, 5609948, 7012435, 14024870, 28049740]

約数ペア:

[(1, 28049740), (2, 14024870), (4, 7012435), (5, 5609948), (10, 2804974), (20, 1402487), (41, 684140), (79, 355060), (82, 342070), (158, 177530), (164, 171035), (205, 136828), (316, 88765), (395, 71012), (410, 68414), (433, 64780), (790, 35506), (820, 34207), (866, 32390), (1580, 17753), (1732, 16195), (2165, 12956), (3239, 8660), (4330, 6478)]