20027852

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 39584160

約数和(自身を除く): 19556308

約数列:

[1, 2, 4, 13, 26, 43, 52, 53, 86, 106, 169, 172, 212, 338, 559, 676, 689, 1118, 1378, 2197, 2236, 2279, 2756, 4394, 4558, 7267, 8788, 8957, 9116, 14534, 17914, 29068, 29627, 35828, 59254, 94471, 116441, 118508, 188942, 232882, 377884, 385151, 465764, 770302, 1540604, 5006963, 10013926, 20027852]

約数ペア:

[(1, 20027852), (2, 10013926), (4, 5006963), (13, 1540604), (26, 770302), (43, 465764), (52, 385151), (53, 377884), (86, 232882), (106, 188942), (169, 118508), (172, 116441), (212, 94471), (338, 59254), (559, 35828), (676, 29627), (689, 29068), (1118, 17914), (1378, 14534), (2197, 9116), (2236, 8957), (2279, 8788), (2756, 7267), (4394, 4558)]