8641842040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1278379}}^1$

素因数の和:1278416

約数の個数: 48

約数和(自身を含む): 21054918600

約数和(自身を除く): 12413076560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 1278379, 2556758, 5113516, 6391895, 10227032, 12783790, 16618927, 25567580, 33237854, 51135160, 66475708, 83094635, 132951416, 166189270, 216046051, 332378540, 432092102, 664757080, 864184204, 1080230255, 1728368408, 2160460510, 4320921020, 8641842040]

約数ペア:

[(1, 8641842040), (2, 4320921020), (4, 2160460510), (5, 1728368408), (8, 1080230255), (10, 864184204), (13, 664757080), (20, 432092102), (26, 332378540), (40, 216046051), (52, 166189270), (65, 132951416), (104, 83094635), (130, 66475708), (169, 51135160), (260, 33237854), (338, 25567580), (520, 16618927), (676, 12783790), (845, 10227032), (1352, 6391895), (1690, 5113516), (3380, 2556758), (6760, 1278379)]