18847120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10243}}^1$

素因数の和:10279

約数の個数: 40

約数和(自身を含む): 45729216

約数和(自身を除く): 26882096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10243, 20486, 40972, 51215, 81944, 102430, 163888, 204860, 235589, 409720, 471178, 819440, 942356, 1177945, 1884712, 2355890, 3769424, 4711780, 9423560, 18847120]

約数ペア:

[(1, 18847120), (2, 9423560), (4, 4711780), (5, 3769424), (8, 2355890), (10, 1884712), (16, 1177945), (20, 942356), (23, 819440), (40, 471178), (46, 409720), (80, 235589), (92, 204860), (115, 163888), (184, 102430), (230, 81944), (368, 51215), (460, 40972), (920, 20486), (1840, 10243)]