81217800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{45121}}^1$

素因数の和:45143

約数の個数: 72

約数和(自身を含む): 272762490

約数和(自身を除く): 191544690

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 45121, 90242, 135363, 180484, 225605, 270726, 360968, 406089, 451210, 541452, 676815, 812178, 902420, 1082904, 1128025, 1353630, 1624356, 1804840, 2030445, 2256050, 2707260, 3248712, 3384075, 4060890, 4512100, 5414520, 6768150, 8121780, 9024200, 10152225, 13536300, 16243560, 20304450, 27072600, 40608900, 81217800]

約数ペア:

[(1, 81217800), (2, 40608900), (3, 27072600), (4, 20304450), (5, 16243560), (6, 13536300), (8, 10152225), (9, 9024200), (10, 8121780), (12, 6768150), (15, 5414520), (18, 4512100), (20, 4060890), (24, 3384075), (25, 3248712), (30, 2707260), (36, 2256050), (40, 2030445), (45, 1804840), (50, 1624356), (60, 1353630), (72, 1128025), (75, 1082904), (90, 902420), (100, 812178), (120, 676815), (150, 541452), (180, 451210), (200, 406089), (225, 360968), (300, 270726), (360, 225605), (450, 180484), (600, 135363), (900, 90242), (1800, 45121)]