20404100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10739}}^1$

素因数の和:10772

約数の個数: 36

約数和(自身を含む): 46611600

約数和(自身を除く): 26207500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10739, 21478, 42956, 53695, 107390, 204041, 214780, 268475, 408082, 536950, 816164, 1020205, 1073900, 2040410, 4080820, 5101025, 10202050, 20404100]

約数ペア:

[(1, 20404100), (2, 10202050), (4, 5101025), (5, 4080820), (10, 2040410), (19, 1073900), (20, 1020205), (25, 816164), (38, 536950), (50, 408082), (76, 268475), (95, 214780), (100, 204041), (190, 107390), (380, 53695), (475, 42956), (950, 21478), (1900, 10739)]