16881920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1$

素因数の和:152

約数の個数: 108

約数和(自身を含む): 44855580

約数和(自身を除く): 27973660

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 109, 110, 121, 128, 160, 176, 218, 220, 242, 256, 320, 352, 436, 440, 484, 545, 605, 640, 704, 872, 880, 968, 1090, 1199, 1210, 1280, 1408, 1744, 1760, 1936, 2180, 2398, 2420, 2816, 3488, 3520, 3872, 4360, 4796, 4840, 5995, 6976, 7040, 7744, 8720, 9592, 9680, 11990, 13189, 13952, 14080, 15488, 17440, 19184, 19360, 23980, 26378, 27904, 30976, 34880, 38368, 38720, 47960, 52756, 65945, 69760, 76736, 77440, 95920, 105512, 131890, 139520, 153472, 154880, 191840, 211024, 263780, 306944, 383680, 422048, 527560, 767360, 844096, 1055120, 1534720, 1688192, 2110240, 3376384, 4220480, 8440960, 16881920]

約数ペア:

[(1, 16881920), (2, 8440960), (4, 4220480), (5, 3376384), (8, 2110240), (10, 1688192), (11, 1534720), (16, 1055120), (20, 844096), (22, 767360), (32, 527560), (40, 422048), (44, 383680), (55, 306944), (64, 263780), (80, 211024), (88, 191840), (109, 154880), (110, 153472), (121, 139520), (128, 131890), (160, 105512), (176, 95920), (218, 77440), (220, 76736), (242, 69760), (256, 65945), (320, 52756), (352, 47960), (436, 38720), (440, 38368), (484, 34880), (545, 30976), (605, 27904), (640, 26378), (704, 23980), (872, 19360), (880, 19184), (968, 17440), (1090, 15488), (1199, 14080), (1210, 13952), (1280, 13189), (1408, 11990), (1744, 9680), (1760, 9592), (1936, 8720), (2180, 7744), (2398, 7040), (2420, 6976), (2816, 5995), (3488, 4840), (3520, 4796), (3872, 4360)]