2159371420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{4933}}^1$

素因数の和:5494

約数の個数: 48

約数和(自身を含む): 4650196320

約数和(自身を除く): 2490824900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 509, 860, 1018, 2036, 2545, 4933, 5090, 9866, 10180, 19732, 21887, 24665, 43774, 49330, 87548, 98660, 109435, 212119, 218870, 424238, 437740, 848476, 1060595, 2121190, 2510897, 4242380, 5021794, 10043588, 12554485, 25108970, 50217940, 107968571, 215937142, 431874284, 539842855, 1079685710, 2159371420]

約数ペア:

[(1, 2159371420), (2, 1079685710), (4, 539842855), (5, 431874284), (10, 215937142), (20, 107968571), (43, 50217940), (86, 25108970), (172, 12554485), (215, 10043588), (430, 5021794), (509, 4242380), (860, 2510897), (1018, 2121190), (2036, 1060595), (2545, 848476), (4933, 437740), (5090, 424238), (9866, 218870), (10180, 212119), (19732, 109435), (21887, 98660), (24665, 87548), (43774, 49330)]