131916160

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 333907200

約数和(自身を除く): 201991040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 109, 122, 124, 128, 155, 160, 218, 244, 248, 305, 310, 320, 436, 488, 496, 545, 610, 620, 640, 872, 976, 992, 1090, 1220, 1240, 1744, 1891, 1952, 1984, 2180, 2440, 2480, 3379, 3488, 3782, 3904, 3968, 4360, 4880, 4960, 6649, 6758, 6976, 7564, 7808, 8720, 9455, 9760, 9920, 13298, 13516, 13952, 15128, 16895, 17440, 18910, 19520, 19840, 26596, 27032, 30256, 33245, 33790, 34880, 37820, 39040, 53192, 54064, 60512, 66490, 67580, 69760, 75640, 106384, 108128, 121024, 132980, 135160, 151280, 206119, 212768, 216256, 242048, 265960, 270320, 302560, 412238, 425536, 432512, 531920, 540640, 605120, 824476, 851072, 1030595, 1063840, 1081280, 1210240, 1648952, 2061190, 2127680, 2162560, 3297904, 4122380, 4255360, 6595808, 8244760, 13191616, 16489520, 26383232, 32979040, 65958080, 131916160]

約数ペア:

[(1, 131916160), (2, 65958080), (4, 32979040), (5, 26383232), (8, 16489520), (10, 13191616), (16, 8244760), (20, 6595808), (31, 4255360), (32, 4122380), (40, 3297904), (61, 2162560), (62, 2127680), (64, 2061190), (80, 1648952), (109, 1210240), (122, 1081280), (124, 1063840), (128, 1030595), (155, 851072), (160, 824476), (218, 605120), (244, 540640), (248, 531920), (305, 432512), (310, 425536), (320, 412238), (436, 302560), (488, 270320), (496, 265960), (545, 242048), (610, 216256), (620, 212768), (640, 206119), (872, 151280), (976, 135160), (992, 132980), (1090, 121024), (1220, 108128), (1240, 106384), (1744, 75640), (1891, 69760), (1952, 67580), (1984, 66490), (2180, 60512), (2440, 54064), (2480, 53192), (3379, 39040), (3488, 37820), (3782, 34880), (3904, 33790), (3968, 33245), (4360, 30256), (4880, 27032), (4960, 26596), (6649, 19840), (6758, 19520), (6976, 18910), (7564, 17440), (7808, 16895), (8720, 15128), (9455, 13952), (9760, 13516), (9920, 13298)]