281034720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{195163}}^1$

素因数の和:195184

約数の個数: 72

約数和(自身を含む): 959035896

約数和(自身を除く): 678001176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 195163, 390326, 585489, 780652, 975815, 1170978, 1561304, 1756467, 1951630, 2341956, 2927445, 3122608, 3512934, 3903260, 4683912, 5854890, 6245216, 7025868, 7806520, 8782335, 9367824, 11709780, 14051736, 15613040, 17564670, 18735648, 23419560, 28103472, 31226080, 35129340, 46839120, 56206944, 70258680, 93678240, 140517360, 281034720]

約数ペア:

[(1, 281034720), (2, 140517360), (3, 93678240), (4, 70258680), (5, 56206944), (6, 46839120), (8, 35129340), (9, 31226080), (10, 28103472), (12, 23419560), (15, 18735648), (16, 17564670), (18, 15613040), (20, 14051736), (24, 11709780), (30, 9367824), (32, 8782335), (36, 7806520), (40, 7025868), (45, 6245216), (48, 5854890), (60, 4683912), (72, 3903260), (80, 3512934), (90, 3122608), (96, 2927445), (120, 2341956), (144, 1951630), (160, 1756467), (180, 1561304), (240, 1170978), (288, 975815), (360, 780652), (480, 585489), (720, 390326), (1440, 195163)]