30216980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 65197440

約数和(自身を除く): 34980460

約数列:

[1, 2, 4, 5, 10, 20, 83, 109, 166, 167, 218, 332, 334, 415, 436, 545, 668, 830, 835, 1090, 1660, 1670, 2180, 3340, 9047, 13861, 18094, 18203, 27722, 36188, 36406, 45235, 55444, 69305, 72812, 90470, 91015, 138610, 180940, 182030, 277220, 364060, 1510849, 3021698, 6043396, 7554245, 15108490, 30216980]

約数ペア:

[(1, 30216980), (2, 15108490), (4, 7554245), (5, 6043396), (10, 3021698), (20, 1510849), (83, 364060), (109, 277220), (166, 182030), (167, 180940), (218, 138610), (332, 91015), (334, 90470), (415, 72812), (436, 69305), (545, 55444), (668, 45235), (830, 36406), (835, 36188), (1090, 27722), (1660, 18203), (1670, 18094), (2180, 13861), (3340, 9047)]