28093975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 15778217

約数列:

[1, 5, 7, 13, 25, 35, 53, 65, 91, 175, 233, 265, 325, 371, 455, 689, 1165, 1325, 1631, 1855, 2275, 3029, 3445, 4823, 5825, 8155, 9275, 12349, 15145, 17225, 21203, 24115, 40775, 61745, 75725, 86443, 106015, 120575, 160537, 308725, 432215, 530075, 802685, 1123759, 2161075, 4013425, 5618795, 28093975]

約数ペア:

[(1, 28093975), (5, 5618795), (7, 4013425), (13, 2161075), (25, 1123759), (35, 802685), (53, 530075), (65, 432215), (91, 308725), (175, 160537), (233, 120575), (265, 106015), (325, 86443), (371, 75725), (455, 61745), (689, 40775), (1165, 24115), (1325, 21203), (1631, 17225), (1855, 15145), (2275, 12349), (3029, 9275), (3445, 8155), (4823, 5825)]