12000020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1373}}^1$

素因数の和:1424

約数の個数: 48

約数和(自身を含む): 27699840

約数和(自身を除く): 15699820

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1373, 1748, 2185, 2746, 4370, 5492, 6865, 8740, 13730, 26087, 27460, 31579, 52174, 63158, 104348, 126316, 130435, 157895, 260870, 315790, 521740, 600001, 631580, 1200002, 2400004, 3000005, 6000010, 12000020]

約数ペア:

[(1, 12000020), (2, 6000010), (4, 3000005), (5, 2400004), (10, 1200002), (19, 631580), (20, 600001), (23, 521740), (38, 315790), (46, 260870), (76, 157895), (92, 130435), (95, 126316), (115, 104348), (190, 63158), (230, 52174), (380, 31579), (437, 27460), (460, 26087), (874, 13730), (1373, 8740), (1748, 6865), (2185, 5492), (2746, 4370)]