21610080

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:413

約数の個数: 144

約数和(自身を含む): 75675600

約数和(自身を除く): 54065520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 96, 120, 129, 144, 160, 172, 180, 215, 240, 258, 288, 344, 349, 360, 387, 430, 480, 516, 645, 688, 698, 720, 774, 860, 1032, 1047, 1290, 1376, 1396, 1440, 1548, 1720, 1745, 1935, 2064, 2094, 2580, 2792, 3096, 3141, 3440, 3490, 3870, 4128, 4188, 5160, 5235, 5584, 6192, 6282, 6880, 6980, 7740, 8376, 10320, 10470, 11168, 12384, 12564, 13960, 15007, 15480, 15705, 16752, 20640, 20940, 25128, 27920, 30014, 30960, 31410, 33504, 41880, 45021, 50256, 55840, 60028, 61920, 62820, 75035, 83760, 90042, 100512, 120056, 125640, 135063, 150070, 167520, 180084, 225105, 240112, 251280, 270126, 300140, 360168, 450210, 480224, 502560, 540252, 600280, 675315, 720336, 900420, 1080504, 1200560, 1350630, 1440672, 1800840, 2161008, 2401120, 2701260, 3601680, 4322016, 5402520, 7203360, 10805040, 21610080]

約数ペア:

[(1, 21610080), (2, 10805040), (3, 7203360), (4, 5402520), (5, 4322016), (6, 3601680), (8, 2701260), (9, 2401120), (10, 2161008), (12, 1800840), (15, 1440672), (16, 1350630), (18, 1200560), (20, 1080504), (24, 900420), (30, 720336), (32, 675315), (36, 600280), (40, 540252), (43, 502560), (45, 480224), (48, 450210), (60, 360168), (72, 300140), (80, 270126), (86, 251280), (90, 240112), (96, 225105), (120, 180084), (129, 167520), (144, 150070), (160, 135063), (172, 125640), (180, 120056), (215, 100512), (240, 90042), (258, 83760), (288, 75035), (344, 62820), (349, 61920), (360, 60028), (387, 55840), (430, 50256), (480, 45021), (516, 41880), (645, 33504), (688, 31410), (698, 30960), (720, 30014), (774, 27920), (860, 25128), (1032, 20940), (1047, 20640), (1290, 16752), (1376, 15705), (1396, 15480), (1440, 15007), (1548, 13960), (1720, 12564), (1745, 12384), (1935, 11168), (2064, 10470), (2094, 10320), (2580, 8376), (2792, 7740), (3096, 6980), (3141, 6880), (3440, 6282), (3490, 6192), (3870, 5584), (4128, 5235), (4188, 5160)]