31390450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6899}}^1$

素因数の和:6931

約数の個数: 48

約数和(自身を含む): 71870400

約数和(自身を除く): 40479950

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 6899, 13798, 34495, 48293, 68990, 89687, 96586, 172475, 179374, 241465, 344950, 448435, 482930, 627809, 896870, 1207325, 1255618, 2242175, 2414650, 3139045, 4484350, 6278090, 15695225, 31390450]

約数ペア:

[(1, 31390450), (2, 15695225), (5, 6278090), (7, 4484350), (10, 3139045), (13, 2414650), (14, 2242175), (25, 1255618), (26, 1207325), (35, 896870), (50, 627809), (65, 482930), (70, 448435), (91, 344950), (130, 241465), (175, 179374), (182, 172475), (325, 96586), (350, 89687), (455, 68990), (650, 48293), (910, 34495), (2275, 13798), (4550, 6899)]