12405620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 27412560

約数和(自身を除く): 15006940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 293, 365, 580, 586, 730, 1172, 1460, 1465, 2117, 2930, 4234, 5860, 8468, 8497, 10585, 16994, 21170, 21389, 33988, 42340, 42485, 42778, 84970, 85556, 106945, 169940, 213890, 427780, 620281, 1240562, 2481124, 3101405, 6202810, 12405620]

約数ペア:

[(1, 12405620), (2, 6202810), (4, 3101405), (5, 2481124), (10, 1240562), (20, 620281), (29, 427780), (58, 213890), (73, 169940), (116, 106945), (145, 85556), (146, 84970), (290, 42778), (292, 42485), (293, 42340), (365, 33988), (580, 21389), (586, 21170), (730, 16994), (1172, 10585), (1460, 8497), (1465, 8468), (2117, 5860), (2930, 4234)]