13285220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1381}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 30879408

約数和(自身を除く): 17594188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1381, 1924, 2405, 2762, 4810, 5524, 6905, 9620, 13810, 17953, 27620, 35906, 51097, 71812, 89765, 102194, 179530, 204388, 255485, 359060, 510970, 664261, 1021940, 1328522, 2657044, 3321305, 6642610, 13285220]

約数ペア:

[(1, 13285220), (2, 6642610), (4, 3321305), (5, 2657044), (10, 1328522), (13, 1021940), (20, 664261), (26, 510970), (37, 359060), (52, 255485), (65, 204388), (74, 179530), (130, 102194), (148, 89765), (185, 71812), (260, 51097), (370, 35906), (481, 27620), (740, 17953), (962, 13810), (1381, 9620), (1924, 6905), (2405, 5524), (2762, 4810)]