19817271700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{75037}}^1$

素因数の和:75209

約数の個数: 72

約数和(自身を含む): 45593088800

約数和(自身を除く): 25775817100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 139, 190, 278, 380, 475, 556, 695, 950, 1390, 1900, 2641, 2780, 3475, 5282, 6950, 10564, 13205, 13900, 26410, 52820, 66025, 75037, 132050, 150074, 264100, 300148, 375185, 750370, 1425703, 1500740, 1875925, 2851406, 3751850, 5702812, 7128515, 7503700, 10430143, 14257030, 20860286, 28514060, 35642575, 41720572, 52150715, 71285150, 104301430, 142570300, 198172717, 208602860, 260753575, 396345434, 521507150, 792690868, 990863585, 1043014300, 1981727170, 3963454340, 4954317925, 9908635850, 19817271700]

約数ペア:

[(1, 19817271700), (2, 9908635850), (4, 4954317925), (5, 3963454340), (10, 1981727170), (19, 1043014300), (20, 990863585), (25, 792690868), (38, 521507150), (50, 396345434), (76, 260753575), (95, 208602860), (100, 198172717), (139, 142570300), (190, 104301430), (278, 71285150), (380, 52150715), (475, 41720572), (556, 35642575), (695, 28514060), (950, 20860286), (1390, 14257030), (1900, 10430143), (2641, 7503700), (2780, 7128515), (3475, 5702812), (5282, 3751850), (6950, 2851406), (10564, 1875925), (13205, 1500740), (13900, 1425703), (26410, 750370), (52820, 375185), (66025, 300148), (75037, 264100), (132050, 150074)]