21025127520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{470993}}^1$

素因数の和:471045

約数の個数: 144

約数和(自身を含む): 74062864512

約数和(自身を除く): 53037736992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 720, 744, 930, 992, 1116, 1240, 1395, 1440, 1488, 1860, 2232, 2480, 2790, 2976, 3720, 4464, 4960, 5580, 7440, 8928, 11160, 14880, 22320, 44640, 470993, 941986, 1412979, 1883972, 2354965, 2825958, 3767944, 4238937, 4709930, 5651916, 7064895, 7535888, 8477874, 9419860, 11303832, 14129790, 14600783, 15071776, 16955748, 18839720, 21194685, 22607664, 28259580, 29201566, 33911496, 37679440, 42389370, 43802349, 45215328, 56519160, 58403132, 67822992, 73003915, 75358880, 84778740, 87604698, 113038320, 116806264, 131407047, 135645984, 146007830, 169557480, 175209396, 219011745, 226076640, 233612528, 262814094, 292015660, 339114960, 350418792, 438023490, 467225056, 525628188, 584031320, 657035235, 678229920, 700837584, 876046980, 1051256376, 1168062640, 1314070470, 1401675168, 1752093960, 2102512752, 2336125280, 2628140940, 3504187920, 4205025504, 5256281880, 7008375840, 10512563760, 21025127520]

約数ペア:

[(1, 21025127520), (2, 10512563760), (3, 7008375840), (4, 5256281880), (5, 4205025504), (6, 3504187920), (8, 2628140940), (9, 2336125280), (10, 2102512752), (12, 1752093960), (15, 1401675168), (16, 1314070470), (18, 1168062640), (20, 1051256376), (24, 876046980), (30, 700837584), (31, 678229920), (32, 657035235), (36, 584031320), (40, 525628188), (45, 467225056), (48, 438023490), (60, 350418792), (62, 339114960), (72, 292015660), (80, 262814094), (90, 233612528), (93, 226076640), (96, 219011745), (120, 175209396), (124, 169557480), (144, 146007830), (155, 135645984), (160, 131407047), (180, 116806264), (186, 113038320), (240, 87604698), (248, 84778740), (279, 75358880), (288, 73003915), (310, 67822992), (360, 58403132), (372, 56519160), (465, 45215328), (480, 43802349), (496, 42389370), (558, 37679440), (620, 33911496), (720, 29201566), (744, 28259580), (930, 22607664), (992, 21194685), (1116, 18839720), (1240, 16955748), (1395, 15071776), (1440, 14600783), (1488, 14129790), (1860, 11303832), (2232, 9419860), (2480, 8477874), (2790, 7535888), (2976, 7064895), (3720, 5651916), (4464, 4709930), (4960, 4238937), (5580, 3767944), (7440, 2825958), (8928, 2354965), (11160, 1883972), (14880, 1412979), (22320, 941986), (44640, 470993)]