11921740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 26661600

約数和(自身を除く): 14739860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 229, 274, 380, 458, 548, 685, 916, 1145, 1370, 2290, 2603, 2740, 4351, 4580, 5206, 8702, 10412, 13015, 17404, 21755, 26030, 31373, 43510, 52060, 62746, 87020, 125492, 156865, 313730, 596087, 627460, 1192174, 2384348, 2980435, 5960870, 11921740]

約数ペア:

[(1, 11921740), (2, 5960870), (4, 2980435), (5, 2384348), (10, 1192174), (19, 627460), (20, 596087), (38, 313730), (76, 156865), (95, 125492), (137, 87020), (190, 62746), (229, 52060), (274, 43510), (380, 31373), (458, 26030), (548, 21755), (685, 17404), (916, 13015), (1145, 10412), (1370, 8702), (2290, 5206), (2603, 4580), (2740, 4351)]