2957780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 7303296

約数和(自身を除く): 4345516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 571, 740, 1036, 1142, 1295, 2284, 2590, 2855, 3997, 5180, 5710, 7994, 11420, 15988, 19985, 21127, 39970, 42254, 79940, 84508, 105635, 147889, 211270, 295778, 422540, 591556, 739445, 1478890, 2957780]

約数ペア:

[(1, 2957780), (2, 1478890), (4, 739445), (5, 591556), (7, 422540), (10, 295778), (14, 211270), (20, 147889), (28, 105635), (35, 84508), (37, 79940), (70, 42254), (74, 39970), (140, 21127), (148, 19985), (185, 15988), (259, 11420), (370, 7994), (518, 5710), (571, 5180), (740, 3997), (1036, 2855), (1142, 2590), (1295, 2284)]