18887680

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 176

約数和(自身を含む): 56595456

約数和(自身を除く): 37707776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 32, 34, 35, 40, 56, 62, 64, 68, 70, 80, 85, 112, 119, 124, 128, 136, 140, 155, 160, 170, 217, 224, 238, 248, 256, 272, 280, 310, 320, 340, 434, 448, 476, 496, 512, 527, 544, 560, 595, 620, 640, 680, 868, 896, 952, 992, 1024, 1054, 1085, 1088, 1120, 1190, 1240, 1280, 1360, 1736, 1792, 1904, 1984, 2108, 2170, 2176, 2240, 2380, 2480, 2560, 2635, 2720, 3472, 3584, 3689, 3808, 3968, 4216, 4340, 4352, 4480, 4760, 4960, 5120, 5270, 5440, 6944, 7168, 7378, 7616, 7936, 8432, 8680, 8704, 8960, 9520, 9920, 10540, 10880, 13888, 14756, 15232, 15872, 16864, 17360, 17408, 17920, 18445, 19040, 19840, 21080, 21760, 27776, 29512, 30464, 31744, 33728, 34720, 35840, 36890, 38080, 39680, 42160, 43520, 55552, 59024, 60928, 67456, 69440, 73780, 76160, 79360, 84320, 87040, 111104, 118048, 121856, 134912, 138880, 147560, 152320, 158720, 168640, 222208, 236096, 269824, 277760, 295120, 304640, 337280, 472192, 539648, 555520, 590240, 609280, 674560, 944384, 1111040, 1180480, 1349120, 1888768, 2360960, 2698240, 3777536, 4721920, 9443840, 18887680]

約数ペア:

[(1, 18887680), (2, 9443840), (4, 4721920), (5, 3777536), (7, 2698240), (8, 2360960), (10, 1888768), (14, 1349120), (16, 1180480), (17, 1111040), (20, 944384), (28, 674560), (31, 609280), (32, 590240), (34, 555520), (35, 539648), (40, 472192), (56, 337280), (62, 304640), (64, 295120), (68, 277760), (70, 269824), (80, 236096), (85, 222208), (112, 168640), (119, 158720), (124, 152320), (128, 147560), (136, 138880), (140, 134912), (155, 121856), (160, 118048), (170, 111104), (217, 87040), (224, 84320), (238, 79360), (248, 76160), (256, 73780), (272, 69440), (280, 67456), (310, 60928), (320, 59024), (340, 55552), (434, 43520), (448, 42160), (476, 39680), (496, 38080), (512, 36890), (527, 35840), (544, 34720), (560, 33728), (595, 31744), (620, 30464), (640, 29512), (680, 27776), (868, 21760), (896, 21080), (952, 19840), (992, 19040), (1024, 18445), (1054, 17920), (1085, 17408), (1088, 17360), (1120, 16864), (1190, 15872), (1240, 15232), (1280, 14756), (1360, 13888), (1736, 10880), (1792, 10540), (1904, 9920), (1984, 9520), (2108, 8960), (2170, 8704), (2176, 8680), (2240, 8432), (2380, 7936), (2480, 7616), (2560, 7378), (2635, 7168), (2720, 6944), (3472, 5440), (3584, 5270), (3689, 5120), (3808, 4960), (3968, 4760), (4216, 4480), (4340, 4352)]