19778760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54941}}^1$

素因数の和:54958

約数の個数: 48

約数和(自身を含む): 64282140

約数和(自身を除く): 44503380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54941, 109882, 164823, 219764, 274705, 329646, 439528, 494469, 549410, 659292, 824115, 988938, 1098820, 1318584, 1648230, 1977876, 2197640, 2472345, 3296460, 3955752, 4944690, 6592920, 9889380, 19778760]

約数ペア:

[(1, 19778760), (2, 9889380), (3, 6592920), (4, 4944690), (5, 3955752), (6, 3296460), (8, 2472345), (9, 2197640), (10, 1977876), (12, 1648230), (15, 1318584), (18, 1098820), (20, 988938), (24, 824115), (30, 659292), (36, 549410), (40, 494469), (45, 439528), (60, 329646), (72, 274705), (90, 219764), (120, 164823), (180, 109882), (360, 54941)]