2749420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 6209280

約数和(自身を除く): 3459860

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 139, 172, 215, 230, 278, 430, 460, 556, 695, 860, 989, 1390, 1978, 2780, 3197, 3956, 4945, 5977, 6394, 9890, 11954, 12788, 15985, 19780, 23908, 29885, 31970, 59770, 63940, 119540, 137471, 274942, 549884, 687355, 1374710, 2749420]

約数ペア:

[(1, 2749420), (2, 1374710), (4, 687355), (5, 549884), (10, 274942), (20, 137471), (23, 119540), (43, 63940), (46, 59770), (86, 31970), (92, 29885), (115, 23908), (139, 19780), (172, 15985), (215, 12788), (230, 11954), (278, 9890), (430, 6394), (460, 5977), (556, 4945), (695, 3956), (860, 3197), (989, 2780), (1390, 1978)]