19666900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{941}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 49059360

約数和(自身を除く): 29392460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 941, 950, 1045, 1100, 1882, 1900, 2090, 3764, 4180, 4705, 5225, 9410, 10351, 10450, 17879, 18820, 20702, 20900, 23525, 35758, 41404, 47050, 51755, 71516, 89395, 94100, 103510, 178790, 196669, 207020, 258775, 357580, 393338, 446975, 517550, 786676, 893950, 983345, 1035100, 1787900, 1966690, 3933380, 4916725, 9833450, 19666900]

約数ペア:

[(1, 19666900), (2, 9833450), (4, 4916725), (5, 3933380), (10, 1966690), (11, 1787900), (19, 1035100), (20, 983345), (22, 893950), (25, 786676), (38, 517550), (44, 446975), (50, 393338), (55, 357580), (76, 258775), (95, 207020), (100, 196669), (110, 178790), (190, 103510), (209, 94100), (220, 89395), (275, 71516), (380, 51755), (418, 47050), (475, 41404), (550, 35758), (836, 23525), (941, 20900), (950, 20702), (1045, 18820), (1100, 17879), (1882, 10450), (1900, 10351), (2090, 9410), (3764, 5225), (4180, 4705)]