391456060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{2273}}^1$

素因数の和:2470

約数の個数: 48

約数和(自身を含む): 840470400

約数和(自身を除く): 449014340

約数列:

[1, 2, 4, 5, 10, 20, 79, 109, 158, 218, 316, 395, 436, 545, 790, 1090, 1580, 2180, 2273, 4546, 8611, 9092, 11365, 17222, 22730, 34444, 43055, 45460, 86110, 172220, 179567, 247757, 359134, 495514, 718268, 897835, 991028, 1238785, 1795670, 2477570, 3591340, 4955140, 19572803, 39145606, 78291212, 97864015, 195728030, 391456060]

約数ペア:

[(1, 391456060), (2, 195728030), (4, 97864015), (5, 78291212), (10, 39145606), (20, 19572803), (79, 4955140), (109, 3591340), (158, 2477570), (218, 1795670), (316, 1238785), (395, 991028), (436, 897835), (545, 718268), (790, 495514), (1090, 359134), (1580, 247757), (2180, 179567), (2273, 172220), (4546, 86110), (8611, 45460), (9092, 43055), (11365, 34444), (17222, 22730)]