81108580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25189}}^1$

素因数の和:25228

約数の個数: 48

約数和(自身を含む): 203132160

約数和(自身を除く): 122023580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 25189, 50378, 100756, 125945, 176323, 251890, 352646, 503780, 579347, 705292, 881615, 1158694, 1763230, 2317388, 2896735, 3526460, 4055429, 5793470, 8110858, 11586940, 16221716, 20277145, 40554290, 81108580]

約数ペア:

[(1, 81108580), (2, 40554290), (4, 20277145), (5, 16221716), (7, 11586940), (10, 8110858), (14, 5793470), (20, 4055429), (23, 3526460), (28, 2896735), (35, 2317388), (46, 1763230), (70, 1158694), (92, 881615), (115, 705292), (140, 579347), (161, 503780), (230, 352646), (322, 251890), (460, 176323), (644, 125945), (805, 100756), (1610, 50378), (3220, 25189)]