821937940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{2089}}^1$

素因数の和:2392

約数の個数: 48

約数和(自身を含む): 1752791040

約数和(自身を除く): 930853100

約数列:

[1, 2, 4, 5, 10, 20, 103, 191, 206, 382, 412, 515, 764, 955, 1030, 1910, 2060, 2089, 3820, 4178, 8356, 10445, 19673, 20890, 39346, 41780, 78692, 98365, 196730, 215167, 393460, 398999, 430334, 797998, 860668, 1075835, 1595996, 1994995, 2151670, 3989990, 4303340, 7979980, 41096897, 82193794, 164387588, 205484485, 410968970, 821937940]

約数ペア:

[(1, 821937940), (2, 410968970), (4, 205484485), (5, 164387588), (10, 82193794), (20, 41096897), (103, 7979980), (191, 4303340), (206, 3989990), (382, 2151670), (412, 1994995), (515, 1595996), (764, 1075835), (955, 860668), (1030, 797998), (1910, 430334), (2060, 398999), (2089, 393460), (3820, 215167), (4178, 196730), (8356, 98365), (10445, 78692), (19673, 41780), (20890, 39346)]