2543380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 6281856

約数和(自身を除く): 3738476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 491, 518, 740, 982, 1036, 1295, 1964, 2455, 2590, 3437, 4910, 5180, 6874, 9820, 13748, 17185, 18167, 34370, 36334, 68740, 72668, 90835, 127169, 181670, 254338, 363340, 508676, 635845, 1271690, 2543380]

約数ペア:

[(1, 2543380), (2, 1271690), (4, 635845), (5, 508676), (7, 363340), (10, 254338), (14, 181670), (20, 127169), (28, 90835), (35, 72668), (37, 68740), (70, 36334), (74, 34370), (140, 18167), (148, 17185), (185, 13748), (259, 9820), (370, 6874), (491, 5180), (518, 4910), (740, 3437), (982, 2590), (1036, 2455), (1295, 1964)]