20315790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20521}}^1$

素因数の和:20545

約数の個数: 48

約数和(自身を含む): 57625776

約数和(自身を除く): 37309986

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20521, 41042, 61563, 102605, 123126, 184689, 205210, 225731, 307815, 369378, 451462, 615630, 677193, 923445, 1128655, 1354386, 1846890, 2031579, 2257310, 3385965, 4063158, 6771930, 10157895, 20315790]

約数ペア:

[(1, 20315790), (2, 10157895), (3, 6771930), (5, 4063158), (6, 3385965), (9, 2257310), (10, 2031579), (11, 1846890), (15, 1354386), (18, 1128655), (22, 923445), (30, 677193), (33, 615630), (45, 451462), (55, 369378), (66, 307815), (90, 225731), (99, 205210), (110, 184689), (165, 123126), (198, 102605), (330, 61563), (495, 41042), (990, 20521)]