2540395

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 48

約数和(自身を含む): 4021920

約数和(自身を除く): 1481525

約数列:

[1, 5, 11, 13, 17, 19, 55, 65, 85, 95, 121, 143, 187, 209, 221, 247, 323, 605, 715, 935, 1045, 1105, 1235, 1573, 1615, 2057, 2299, 2431, 2717, 3553, 4199, 7865, 10285, 11495, 12155, 13585, 17765, 20995, 26741, 29887, 39083, 46189, 133705, 149435, 195415, 230945, 508079, 2540395]

約数ペア:

[(1, 2540395), (5, 508079), (11, 230945), (13, 195415), (17, 149435), (19, 133705), (55, 46189), (65, 39083), (85, 29887), (95, 26741), (121, 20995), (143, 17765), (187, 13585), (209, 12155), (221, 11495), (247, 10285), (323, 7865), (605, 4199), (715, 3553), (935, 2717), (1045, 2431), (1105, 2299), (1235, 2057), (1573, 1615)]