209879140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1\times {\mathrm{977}}^1$

素因数の和:1476

約数の個数: 48

約数和(自身を含む): 461365632

約数和(自身を除く): 251486492

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 467, 934, 977, 1868, 1954, 2335, 3908, 4670, 4885, 9340, 9770, 10741, 19540, 21482, 22471, 42964, 44942, 53705, 89884, 107410, 112355, 214820, 224710, 449420, 456259, 912518, 1825036, 2281295, 4562590, 9125180, 10493957, 20987914, 41975828, 52469785, 104939570, 209879140]

約数ペア:

[(1, 209879140), (2, 104939570), (4, 52469785), (5, 41975828), (10, 20987914), (20, 10493957), (23, 9125180), (46, 4562590), (92, 2281295), (115, 1825036), (230, 912518), (460, 456259), (467, 449420), (934, 224710), (977, 214820), (1868, 112355), (1954, 107410), (2335, 89884), (3908, 53705), (4670, 44942), (4885, 42964), (9340, 22471), (9770, 21482), (10741, 19540)]