1645492340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{39727}}^1$

素因数の和:39864

約数の個数: 48

約数和(自身を含む): 3670867200

約数和(自身を除く): 2025374860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 436, 545, 1090, 2071, 2180, 4142, 8284, 10355, 20710, 39727, 41420, 79454, 158908, 198635, 397270, 754813, 794540, 1509626, 3019252, 3774065, 4330243, 7548130, 8660486, 15096260, 17320972, 21651215, 43302430, 82274617, 86604860, 164549234, 329098468, 411373085, 822746170, 1645492340]

約数ペア:

[(1, 1645492340), (2, 822746170), (4, 411373085), (5, 329098468), (10, 164549234), (19, 86604860), (20, 82274617), (38, 43302430), (76, 21651215), (95, 17320972), (109, 15096260), (190, 8660486), (218, 7548130), (380, 4330243), (436, 3774065), (545, 3019252), (1090, 1509626), (2071, 794540), (2180, 754813), (4142, 397270), (8284, 198635), (10355, 158908), (20710, 79454), (39727, 41420)]