19666840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21377}}^1$

素因数の和:21411

約数の個数: 32

約数和(自身を含む): 46176480

約数和(自身を除く): 26509640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21377, 42754, 85508, 106885, 171016, 213770, 427540, 491671, 855080, 983342, 1966684, 2458355, 3933368, 4916710, 9833420, 19666840]

約数ペア:

[(1, 19666840), (2, 9833420), (4, 4916710), (5, 3933368), (8, 2458355), (10, 1966684), (20, 983342), (23, 855080), (40, 491671), (46, 427540), (92, 213770), (115, 171016), (184, 106885), (230, 85508), (460, 42754), (920, 21377)]