20300500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3691}}^1$

素因数の和:3721

約数の個数: 48

約数和(自身を含む): 48379968

約数和(自身を除く): 28079468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3691, 5500, 7382, 14764, 18455, 36910, 40601, 73820, 81202, 92275, 162404, 184550, 203005, 369100, 406010, 461375, 812020, 922750, 1015025, 1845500, 2030050, 4060100, 5075125, 10150250, 20300500]

約数ペア:

[(1, 20300500), (2, 10150250), (4, 5075125), (5, 4060100), (10, 2030050), (11, 1845500), (20, 1015025), (22, 922750), (25, 812020), (44, 461375), (50, 406010), (55, 369100), (100, 203005), (110, 184550), (125, 162404), (220, 92275), (250, 81202), (275, 73820), (500, 40601), (550, 36910), (1100, 18455), (1375, 14764), (2750, 7382), (3691, 5500)]