649528720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{761}}^1$

素因数の和:1048

約数の個数: 80

約数和(自身を含む): 1551115008

約数和(自身を除く): 901586288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 227, 235, 376, 454, 470, 752, 761, 908, 940, 1135, 1522, 1816, 1880, 2270, 3044, 3632, 3760, 3805, 4540, 6088, 7610, 9080, 10669, 12176, 15220, 18160, 21338, 30440, 35767, 42676, 53345, 60880, 71534, 85352, 106690, 143068, 170704, 172747, 178835, 213380, 286136, 345494, 357670, 426760, 572272, 690988, 715340, 853520, 863735, 1381976, 1430680, 1727470, 2763952, 2861360, 3454940, 6909880, 8119109, 13819760, 16238218, 32476436, 40595545, 64952872, 81191090, 129905744, 162382180, 324764360, 649528720]

約数ペア:

[(1, 649528720), (2, 324764360), (4, 162382180), (5, 129905744), (8, 81191090), (10, 64952872), (16, 40595545), (20, 32476436), (40, 16238218), (47, 13819760), (80, 8119109), (94, 6909880), (188, 3454940), (227, 2861360), (235, 2763952), (376, 1727470), (454, 1430680), (470, 1381976), (752, 863735), (761, 853520), (908, 715340), (940, 690988), (1135, 572272), (1522, 426760), (1816, 357670), (1880, 345494), (2270, 286136), (3044, 213380), (3632, 178835), (3760, 172747), (3805, 170704), (4540, 143068), (6088, 106690), (7610, 85352), (9080, 71534), (10669, 60880), (12176, 53345), (15220, 42676), (18160, 35767), (21338, 30440)]