1718562820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{42101}}^1$

素因数の和:42280

約数の個数: 48

約数和(自身を含む): 3911444208

約数和(自身を除く): 2192881388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 2041, 3140, 4082, 8164, 10205, 20410, 40820, 42101, 84202, 168404, 210505, 421010, 547313, 842020, 1094626, 2189252, 2736565, 5473130, 6609857, 10946260, 13219714, 26439428, 33049285, 66098570, 85928141, 132197140, 171856282, 343712564, 429640705, 859281410, 1718562820]

約数ペア:

[(1, 1718562820), (2, 859281410), (4, 429640705), (5, 343712564), (10, 171856282), (13, 132197140), (20, 85928141), (26, 66098570), (52, 33049285), (65, 26439428), (130, 13219714), (157, 10946260), (260, 6609857), (314, 5473130), (628, 2736565), (785, 2189252), (1570, 1094626), (2041, 842020), (3140, 547313), (4082, 421010), (8164, 210505), (10205, 168404), (20410, 84202), (40820, 42101)]