18784360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1010

約数の個数: 64

約数和(自身を含む): 49017600

約数和(自身を除く): 30233240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 919, 1022, 1460, 1838, 2044, 2555, 2920, 3676, 4088, 4595, 5110, 6433, 7352, 9190, 10220, 12866, 18380, 20440, 25732, 32165, 36760, 51464, 64330, 67087, 128660, 134174, 257320, 268348, 335435, 469609, 536696, 670870, 939218, 1341740, 1878436, 2348045, 2683480, 3756872, 4696090, 9392180, 18784360]

約数ペア:

[(1, 18784360), (2, 9392180), (4, 4696090), (5, 3756872), (7, 2683480), (8, 2348045), (10, 1878436), (14, 1341740), (20, 939218), (28, 670870), (35, 536696), (40, 469609), (56, 335435), (70, 268348), (73, 257320), (140, 134174), (146, 128660), (280, 67087), (292, 64330), (365, 51464), (511, 36760), (584, 32165), (730, 25732), (919, 20440), (1022, 18380), (1460, 12866), (1838, 10220), (2044, 9190), (2555, 7352), (2920, 6433), (3676, 5110), (4088, 4595)]