12351280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2531}}^1$

素因数の和:2605

約数の個数: 40

約数和(自身を含む): 29199024

約数和(自身を除く): 16847744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2531, 4880, 5062, 10124, 12655, 20248, 25310, 40496, 50620, 101240, 154391, 202480, 308782, 617564, 771955, 1235128, 1543910, 2470256, 3087820, 6175640, 12351280]

約数ペア:

[(1, 12351280), (2, 6175640), (4, 3087820), (5, 2470256), (8, 1543910), (10, 1235128), (16, 771955), (20, 617564), (40, 308782), (61, 202480), (80, 154391), (122, 101240), (244, 50620), (305, 40496), (488, 25310), (610, 20248), (976, 12655), (1220, 10124), (2440, 5062), (2531, 4880)]