19001240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27943}}^1$

素因数の和:27971

約数の個数: 32

約数和(自身を含む): 45269280

約数和(自身を除く): 26268040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27943, 55886, 111772, 139715, 223544, 279430, 475031, 558860, 950062, 1117720, 1900124, 2375155, 3800248, 4750310, 9500620, 19001240]

約数ペア:

[(1, 19001240), (2, 9500620), (4, 4750310), (5, 3800248), (8, 2375155), (10, 1900124), (17, 1117720), (20, 950062), (34, 558860), (40, 475031), (68, 279430), (85, 223544), (136, 139715), (170, 111772), (340, 55886), (680, 27943)]