21589680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 160

約数和(自身を含む): 77995008

約数和(自身を除く): 56405328

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, 71, 80, 84, 105, 112, 120, 140, 142, 168, 181, 210, 213, 240, 280, 284, 336, 355, 362, 420, 426, 497, 543, 560, 568, 710, 724, 840, 852, 905, 994, 1065, 1086, 1136, 1267, 1420, 1448, 1491, 1680, 1704, 1810, 1988, 2130, 2172, 2485, 2534, 2715, 2840, 2896, 2982, 3408, 3620, 3801, 3976, 4260, 4344, 4970, 5068, 5430, 5680, 5964, 6335, 7240, 7455, 7602, 7952, 8520, 8688, 9940, 10136, 10860, 11928, 12670, 12851, 14480, 14910, 15204, 17040, 19005, 19880, 20272, 21720, 23856, 25340, 25702, 29820, 30408, 38010, 38553, 39760, 43440, 50680, 51404, 59640, 60816, 64255, 76020, 77106, 89957, 101360, 102808, 119280, 128510, 152040, 154212, 179914, 192765, 205616, 257020, 269871, 304080, 308424, 359828, 385530, 449785, 514040, 539742, 616848, 719656, 771060, 899570, 1028080, 1079484, 1349355, 1439312, 1542120, 1799140, 2158968, 2698710, 3084240, 3598280, 4317936, 5397420, 7196560, 10794840, 21589680]

約数ペア:

[(1, 21589680), (2, 10794840), (3, 7196560), (4, 5397420), (5, 4317936), (6, 3598280), (7, 3084240), (8, 2698710), (10, 2158968), (12, 1799140), (14, 1542120), (15, 1439312), (16, 1349355), (20, 1079484), (21, 1028080), (24, 899570), (28, 771060), (30, 719656), (35, 616848), (40, 539742), (42, 514040), (48, 449785), (56, 385530), (60, 359828), (70, 308424), (71, 304080), (80, 269871), (84, 257020), (105, 205616), (112, 192765), (120, 179914), (140, 154212), (142, 152040), (168, 128510), (181, 119280), (210, 102808), (213, 101360), (240, 89957), (280, 77106), (284, 76020), (336, 64255), (355, 60816), (362, 59640), (420, 51404), (426, 50680), (497, 43440), (543, 39760), (560, 38553), (568, 38010), (710, 30408), (724, 29820), (840, 25702), (852, 25340), (905, 23856), (994, 21720), (1065, 20272), (1086, 19880), (1136, 19005), (1267, 17040), (1420, 15204), (1448, 14910), (1491, 14480), (1680, 12851), (1704, 12670), (1810, 11928), (1988, 10860), (2130, 10136), (2172, 9940), (2485, 8688), (2534, 8520), (2715, 7952), (2840, 7602), (2896, 7455), (2982, 7240), (3408, 6335), (3620, 5964), (3801, 5680), (3976, 5430), (4260, 5068), (4344, 4970)]