18828159140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1894181}}^1$

素因数の和:1894268

約数の個数: 48

約数和(自身を含む): 45824050944

約数和(自身を除く): 26995891804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 1894181, 3788362, 7576724, 9470905, 13259267, 18941810, 26518534, 37883620, 53037068, 66296335, 132592670, 134486851, 265185340, 268973702, 537947404, 672434255, 941407957, 1344868510, 1882815914, 2689737020, 3765631828, 4707039785, 9414079570, 18828159140]

約数ペア:

[(1, 18828159140), (2, 9414079570), (4, 4707039785), (5, 3765631828), (7, 2689737020), (10, 1882815914), (14, 1344868510), (20, 941407957), (28, 672434255), (35, 537947404), (70, 268973702), (71, 265185340), (140, 134486851), (142, 132592670), (284, 66296335), (355, 53037068), (497, 37883620), (710, 26518534), (994, 18941810), (1420, 13259267), (1988, 9470905), (2485, 7576724), (4970, 3788362), (9940, 1894181)]