18378490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1297}}^1$

素因数の和:1426

約数の個数: 32

約数和(自身を含む): 35980560

約数和(自身を除く): 17602070

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1297, 1417, 2594, 2834, 6485, 7085, 12970, 14170, 16861, 33722, 84305, 141373, 168610, 282746, 706865, 1413730, 1837849, 3675698, 9189245, 18378490]

約数ペア:

[(1, 18378490), (2, 9189245), (5, 3675698), (10, 1837849), (13, 1413730), (26, 706865), (65, 282746), (109, 168610), (130, 141373), (218, 84305), (545, 33722), (1090, 16861), (1297, 14170), (1417, 12970), (2594, 7085), (2834, 6485)]