21976080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 79233024

約数和(自身を除く): 57256944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 103, 105, 112, 120, 127, 140, 168, 206, 210, 240, 254, 280, 309, 336, 381, 412, 420, 508, 515, 560, 618, 635, 721, 762, 824, 840, 889, 1016, 1030, 1236, 1270, 1442, 1524, 1545, 1648, 1680, 1778, 1905, 2032, 2060, 2163, 2472, 2540, 2667, 2884, 3048, 3090, 3556, 3605, 3810, 4120, 4326, 4445, 4944, 5080, 5334, 5768, 6096, 6180, 7112, 7210, 7620, 8240, 8652, 8890, 10160, 10668, 10815, 11536, 12360, 13081, 13335, 14224, 14420, 15240, 17304, 17780, 21336, 21630, 24720, 26162, 26670, 28840, 30480, 34608, 35560, 39243, 42672, 43260, 52324, 53340, 57680, 65405, 71120, 78486, 86520, 91567, 104648, 106680, 130810, 156972, 173040, 183134, 196215, 209296, 213360, 261620, 274701, 313944, 366268, 392430, 457835, 523240, 549402, 627888, 732536, 784860, 915670, 1046480, 1098804, 1373505, 1465072, 1569720, 1831340, 2197608, 2747010, 3139440, 3662680, 4395216, 5494020, 7325360, 10988040, 21976080]

約数ペア:

[(1, 21976080), (2, 10988040), (3, 7325360), (4, 5494020), (5, 4395216), (6, 3662680), (7, 3139440), (8, 2747010), (10, 2197608), (12, 1831340), (14, 1569720), (15, 1465072), (16, 1373505), (20, 1098804), (21, 1046480), (24, 915670), (28, 784860), (30, 732536), (35, 627888), (40, 549402), (42, 523240), (48, 457835), (56, 392430), (60, 366268), (70, 313944), (80, 274701), (84, 261620), (103, 213360), (105, 209296), (112, 196215), (120, 183134), (127, 173040), (140, 156972), (168, 130810), (206, 106680), (210, 104648), (240, 91567), (254, 86520), (280, 78486), (309, 71120), (336, 65405), (381, 57680), (412, 53340), (420, 52324), (508, 43260), (515, 42672), (560, 39243), (618, 35560), (635, 34608), (721, 30480), (762, 28840), (824, 26670), (840, 26162), (889, 24720), (1016, 21630), (1030, 21336), (1236, 17780), (1270, 17304), (1442, 15240), (1524, 14420), (1545, 14224), (1648, 13335), (1680, 13081), (1778, 12360), (1905, 11536), (2032, 10815), (2060, 10668), (2163, 10160), (2472, 8890), (2540, 8652), (2667, 8240), (2884, 7620), (3048, 7210), (3090, 7112), (3556, 6180), (3605, 6096), (3810, 5768), (4120, 5334), (4326, 5080), (4445, 4944)]