2753380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 6725376

約数和(自身を除く): 3971996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 277, 284, 355, 497, 554, 710, 994, 1108, 1385, 1420, 1939, 1988, 2485, 2770, 3878, 4970, 5540, 7756, 9695, 9940, 19390, 19667, 38780, 39334, 78668, 98335, 137669, 196670, 275338, 393340, 550676, 688345, 1376690, 2753380]

約数ペア:

[(1, 2753380), (2, 1376690), (4, 688345), (5, 550676), (7, 393340), (10, 275338), (14, 196670), (20, 137669), (28, 98335), (35, 78668), (70, 39334), (71, 38780), (140, 19667), (142, 19390), (277, 9940), (284, 9695), (355, 7756), (497, 5540), (554, 4970), (710, 3878), (994, 2770), (1108, 2485), (1385, 1988), (1420, 1939)]