17775140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 39054960

約数和(自身を除く): 21279820

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 409, 410, 530, 818, 820, 1060, 1636, 2045, 2173, 4090, 4346, 8180, 8692, 10865, 16769, 21677, 21730, 33538, 43354, 43460, 67076, 83845, 86708, 108385, 167690, 216770, 335380, 433540, 888757, 1777514, 3555028, 4443785, 8887570, 17775140]

約数ペア:

[(1, 17775140), (2, 8887570), (4, 4443785), (5, 3555028), (10, 1777514), (20, 888757), (41, 433540), (53, 335380), (82, 216770), (106, 167690), (164, 108385), (205, 86708), (212, 83845), (265, 67076), (409, 43460), (410, 43354), (530, 33538), (818, 21730), (820, 21677), (1060, 16769), (1636, 10865), (2045, 8692), (2173, 8180), (4090, 4346)]