20729850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1351

約数の個数: 48

約数和(自身を含む): 51907392

約数和(自身を除く): 31177542

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 113, 150, 226, 339, 565, 678, 1130, 1223, 1695, 2446, 2825, 3390, 3669, 5650, 6115, 7338, 8475, 12230, 16950, 18345, 30575, 36690, 61150, 91725, 138199, 183450, 276398, 414597, 690995, 829194, 1381990, 2072985, 3454975, 4145970, 6909950, 10364925, 20729850]

約数ペア:

[(1, 20729850), (2, 10364925), (3, 6909950), (5, 4145970), (6, 3454975), (10, 2072985), (15, 1381990), (25, 829194), (30, 690995), (50, 414597), (75, 276398), (113, 183450), (150, 138199), (226, 91725), (339, 61150), (565, 36690), (678, 30575), (1130, 18345), (1223, 16950), (1695, 12230), (2446, 8475), (2825, 7338), (3390, 6115), (3669, 5650)]