81882720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{563}}^1$

素因数の和:685

約数の個数: 144

約数和(自身を含む): 282692592

約数和(自身を除く): 200809872

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, 101, 120, 144, 160, 180, 202, 240, 288, 303, 360, 404, 480, 505, 563, 606, 720, 808, 909, 1010, 1126, 1212, 1440, 1515, 1616, 1689, 1818, 2020, 2252, 2424, 2815, 3030, 3232, 3378, 3636, 4040, 4504, 4545, 4848, 5067, 5630, 6060, 6756, 7272, 8080, 8445, 9008, 9090, 9696, 10134, 11260, 12120, 13512, 14544, 16160, 16890, 18016, 18180, 20268, 22520, 24240, 25335, 27024, 29088, 33780, 36360, 40536, 45040, 48480, 50670, 54048, 56863, 67560, 72720, 81072, 90080, 101340, 113726, 135120, 145440, 162144, 170589, 202680, 227452, 270240, 284315, 341178, 405360, 454904, 511767, 568630, 682356, 810720, 852945, 909808, 1023534, 1137260, 1364712, 1705890, 1819616, 2047068, 2274520, 2558835, 2729424, 3411780, 4094136, 4549040, 5117670, 5458848, 6823560, 8188272, 9098080, 10235340, 13647120, 16376544, 20470680, 27294240, 40941360, 81882720]

約数ペア:

[(1, 81882720), (2, 40941360), (3, 27294240), (4, 20470680), (5, 16376544), (6, 13647120), (8, 10235340), (9, 9098080), (10, 8188272), (12, 6823560), (15, 5458848), (16, 5117670), (18, 4549040), (20, 4094136), (24, 3411780), (30, 2729424), (32, 2558835), (36, 2274520), (40, 2047068), (45, 1819616), (48, 1705890), (60, 1364712), (72, 1137260), (80, 1023534), (90, 909808), (96, 852945), (101, 810720), (120, 682356), (144, 568630), (160, 511767), (180, 454904), (202, 405360), (240, 341178), (288, 284315), (303, 270240), (360, 227452), (404, 202680), (480, 170589), (505, 162144), (563, 145440), (606, 135120), (720, 113726), (808, 101340), (909, 90080), (1010, 81072), (1126, 72720), (1212, 67560), (1440, 56863), (1515, 54048), (1616, 50670), (1689, 48480), (1818, 45040), (2020, 40536), (2252, 36360), (2424, 33780), (2815, 29088), (3030, 27024), (3232, 25335), (3378, 24240), (3636, 22520), (4040, 20268), (4504, 18180), (4545, 18016), (4848, 16890), (5067, 16160), (5630, 14544), (6060, 13512), (6756, 12120), (7272, 11260), (8080, 10134), (8445, 9696), (9008, 9090)]