2158180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^2$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 4766580

約数和(自身を除く): 2608400

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1769, 3538, 3721, 7076, 7442, 8845, 14884, 17690, 18605, 35380, 37210, 74420, 107909, 215818, 431636, 539545, 1079090, 2158180]

約数ペア:

[(1, 2158180), (2, 1079090), (4, 539545), (5, 431636), (10, 215818), (20, 107909), (29, 74420), (58, 37210), (61, 35380), (116, 18605), (122, 17690), (145, 14884), (244, 8845), (290, 7442), (305, 7076), (580, 3721), (610, 3538), (1220, 1769)]