28297490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1997}}^1$

素因数の和:2126

約数の個数: 32

約数和(自身を含む): 55384560

約数和(自身を除く): 27087070

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1997, 2834, 3994, 7085, 9985, 14170, 19970, 25961, 51922, 129805, 217673, 259610, 435346, 1088365, 2176730, 2829749, 5659498, 14148745, 28297490]

約数ペア:

[(1, 28297490), (2, 14148745), (5, 5659498), (10, 2829749), (13, 2176730), (26, 1088365), (65, 435346), (109, 259610), (130, 217673), (218, 129805), (545, 51922), (1090, 25961), (1417, 19970), (1997, 14170), (2834, 9985), (3994, 7085)]