25704840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 89579520

約数和(自身を除く): 63874680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 431, 497, 568, 710, 840, 852, 862, 994, 1065, 1293, 1420, 1491, 1704, 1724, 1988, 2130, 2155, 2485, 2586, 2840, 2982, 3017, 3448, 3976, 4260, 4310, 4970, 5172, 5964, 6034, 6465, 7455, 8520, 8620, 9051, 9940, 10344, 11928, 12068, 12930, 14910, 15085, 17240, 18102, 19880, 24136, 25860, 29820, 30170, 30601, 36204, 45255, 51720, 59640, 60340, 61202, 72408, 90510, 91803, 120680, 122404, 153005, 181020, 183606, 214207, 244808, 306010, 362040, 367212, 428414, 459015, 612020, 642621, 734424, 856828, 918030, 1071035, 1224040, 1285242, 1713656, 1836060, 2142070, 2570484, 3213105, 3672120, 4284140, 5140968, 6426210, 8568280, 12852420, 25704840]

約数ペア:

[(1, 25704840), (2, 12852420), (3, 8568280), (4, 6426210), (5, 5140968), (6, 4284140), (7, 3672120), (8, 3213105), (10, 2570484), (12, 2142070), (14, 1836060), (15, 1713656), (20, 1285242), (21, 1224040), (24, 1071035), (28, 918030), (30, 856828), (35, 734424), (40, 642621), (42, 612020), (56, 459015), (60, 428414), (70, 367212), (71, 362040), (84, 306010), (105, 244808), (120, 214207), (140, 183606), (142, 181020), (168, 153005), (210, 122404), (213, 120680), (280, 91803), (284, 90510), (355, 72408), (420, 61202), (426, 60340), (431, 59640), (497, 51720), (568, 45255), (710, 36204), (840, 30601), (852, 30170), (862, 29820), (994, 25860), (1065, 24136), (1293, 19880), (1420, 18102), (1491, 17240), (1704, 15085), (1724, 14910), (1988, 12930), (2130, 12068), (2155, 11928), (2485, 10344), (2586, 9940), (2840, 9051), (2982, 8620), (3017, 8520), (3448, 7455), (3976, 6465), (4260, 6034), (4310, 5964), (4970, 5172)]