21838880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 192

約数和(自身を含む): 66189312

約数和(自身を除く): 44350432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 32, 34, 35, 37, 40, 56, 62, 68, 70, 74, 80, 85, 112, 119, 124, 136, 140, 148, 155, 160, 170, 185, 217, 224, 238, 248, 259, 272, 280, 296, 310, 340, 370, 434, 476, 496, 518, 527, 544, 560, 592, 595, 620, 629, 680, 740, 868, 952, 992, 1036, 1054, 1085, 1120, 1147, 1184, 1190, 1240, 1258, 1295, 1360, 1480, 1736, 1904, 2072, 2108, 2170, 2294, 2380, 2480, 2516, 2590, 2635, 2720, 2960, 3145, 3472, 3689, 3808, 4144, 4216, 4340, 4403, 4588, 4760, 4960, 5032, 5180, 5270, 5735, 5920, 6290, 6944, 7378, 8029, 8288, 8432, 8680, 8806, 9176, 9520, 10064, 10360, 10540, 11470, 12580, 14756, 16058, 16864, 17360, 17612, 18352, 18445, 19040, 19499, 20128, 20720, 21080, 22015, 22940, 25160, 29512, 32116, 34720, 35224, 36704, 36890, 38998, 40145, 41440, 42160, 44030, 45880, 50320, 59024, 64232, 70448, 73780, 77996, 80290, 84320, 88060, 91760, 97495, 100640, 118048, 128464, 136493, 140896, 147560, 155992, 160580, 176120, 183520, 194990, 256928, 272986, 295120, 311984, 321160, 352240, 389980, 545972, 590240, 623968, 642320, 682465, 704480, 779960, 1091944, 1284640, 1364930, 1559920, 2183888, 2729860, 3119840, 4367776, 5459720, 10919440, 21838880]

約数ペア:

[(1, 21838880), (2, 10919440), (4, 5459720), (5, 4367776), (7, 3119840), (8, 2729860), (10, 2183888), (14, 1559920), (16, 1364930), (17, 1284640), (20, 1091944), (28, 779960), (31, 704480), (32, 682465), (34, 642320), (35, 623968), (37, 590240), (40, 545972), (56, 389980), (62, 352240), (68, 321160), (70, 311984), (74, 295120), (80, 272986), (85, 256928), (112, 194990), (119, 183520), (124, 176120), (136, 160580), (140, 155992), (148, 147560), (155, 140896), (160, 136493), (170, 128464), (185, 118048), (217, 100640), (224, 97495), (238, 91760), (248, 88060), (259, 84320), (272, 80290), (280, 77996), (296, 73780), (310, 70448), (340, 64232), (370, 59024), (434, 50320), (476, 45880), (496, 44030), (518, 42160), (527, 41440), (544, 40145), (560, 38998), (592, 36890), (595, 36704), (620, 35224), (629, 34720), (680, 32116), (740, 29512), (868, 25160), (952, 22940), (992, 22015), (1036, 21080), (1054, 20720), (1085, 20128), (1120, 19499), (1147, 19040), (1184, 18445), (1190, 18352), (1240, 17612), (1258, 17360), (1295, 16864), (1360, 16058), (1480, 14756), (1736, 12580), (1904, 11470), (2072, 10540), (2108, 10360), (2170, 10064), (2294, 9520), (2380, 9176), (2480, 8806), (2516, 8680), (2590, 8432), (2635, 8288), (2720, 8029), (2960, 7378), (3145, 6944), (3472, 6290), (3689, 5920), (3808, 5735), (4144, 5270), (4216, 5180), (4340, 5032), (4403, 4960), (4588, 4760)]