19691347180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1\times {\mathrm{61547}}^1$

素因数の和:62514

約数の個数: 48

約数和(自身を含む): 43831531296

約数和(自身を除く): 24140184116

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 941, 1882, 3764, 4705, 9410, 15997, 18820, 31994, 61547, 63988, 79985, 123094, 159970, 246188, 307735, 319940, 615470, 1046299, 1230940, 2092598, 4185196, 5231495, 10462990, 20925980, 57915727, 115831454, 231662908, 289578635, 579157270, 984567359, 1158314540, 1969134718, 3938269436, 4922836795, 9845673590, 19691347180]

約数ペア:

[(1, 19691347180), (2, 9845673590), (4, 4922836795), (5, 3938269436), (10, 1969134718), (17, 1158314540), (20, 984567359), (34, 579157270), (68, 289578635), (85, 231662908), (170, 115831454), (340, 57915727), (941, 20925980), (1882, 10462990), (3764, 5231495), (4705, 4185196), (9410, 2092598), (15997, 1230940), (18820, 1046299), (31994, 615470), (61547, 319940), (63988, 307735), (79985, 246188), (123094, 159970)]