20372912

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1801}}^1$

素因数の和:1917

約数の個数: 40

約数和(自身を含む): 45583392

約数和(自身を除く): 25210480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1801, 2828, 3602, 5656, 7204, 11312, 12607, 14408, 25214, 28816, 50428, 100856, 181901, 201712, 363802, 727604, 1273307, 1455208, 2546614, 2910416, 5093228, 10186456, 20372912]

約数ペア:

[(1, 20372912), (2, 10186456), (4, 5093228), (7, 2910416), (8, 2546614), (14, 1455208), (16, 1273307), (28, 727604), (56, 363802), (101, 201712), (112, 181901), (202, 100856), (404, 50428), (707, 28816), (808, 25214), (1414, 14408), (1616, 12607), (1801, 11312), (2828, 7204), (3602, 5656)]