20229975

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1913}}^1$

素因数の和:1976

約数の個数: 36

約数和(自身を含む): 37024416

約数和(自身を除く): 16794441

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 1913, 2115, 3525, 5739, 9565, 10575, 17217, 28695, 47825, 86085, 89911, 143475, 269733, 430425, 449555, 809199, 1348665, 2247775, 4045995, 6743325, 20229975]

約数ペア:

[(1, 20229975), (3, 6743325), (5, 4045995), (9, 2247775), (15, 1348665), (25, 809199), (45, 449555), (47, 430425), (75, 269733), (141, 143475), (225, 89911), (235, 86085), (423, 47825), (705, 28695), (1175, 17217), (1913, 10575), (2115, 9565), (3525, 5739)]