20742510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 51026256

約数和(自身を除く): 30283746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 313, 470, 626, 705, 939, 1410, 1565, 1878, 2209, 3130, 4418, 4695, 6627, 9390, 11045, 13254, 14711, 22090, 29422, 33135, 44133, 66270, 73555, 88266, 147110, 220665, 441330, 691417, 1382834, 2074251, 3457085, 4148502, 6914170, 10371255, 20742510]

約数ペア:

[(1, 20742510), (2, 10371255), (3, 6914170), (5, 4148502), (6, 3457085), (10, 2074251), (15, 1382834), (30, 691417), (47, 441330), (94, 220665), (141, 147110), (235, 88266), (282, 73555), (313, 66270), (470, 44133), (626, 33135), (705, 29422), (939, 22090), (1410, 14711), (1565, 13254), (1878, 11045), (2209, 9390), (3130, 6627), (4418, 4695)]