81431040

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:510

約数の個数: 160

約数和(自身を含む): 272232576

約数和(自身を除く): 190801536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 256, 276, 320, 345, 368, 384, 460, 461, 480, 512, 552, 640, 690, 736, 768, 920, 922, 960, 1104, 1280, 1380, 1383, 1472, 1536, 1840, 1844, 1920, 2208, 2305, 2560, 2760, 2766, 2944, 3680, 3688, 3840, 4416, 4610, 5520, 5532, 5888, 6915, 7360, 7376, 7680, 8832, 9220, 10603, 11040, 11064, 11776, 13830, 14720, 14752, 17664, 18440, 21206, 22080, 22128, 27660, 29440, 29504, 31809, 35328, 36880, 42412, 44160, 44256, 53015, 55320, 58880, 59008, 63618, 73760, 84824, 88320, 88512, 106030, 110640, 118016, 127236, 147520, 159045, 169648, 176640, 177024, 212060, 221280, 236032, 254472, 295040, 318090, 339296, 354048, 424120, 442560, 508944, 590080, 636180, 678592, 708096, 848240, 885120, 1017888, 1180160, 1272360, 1357184, 1696480, 1770240, 2035776, 2544720, 2714368, 3392960, 3540480, 4071552, 5089440, 5428736, 6785920, 8143104, 10178880, 13571840, 16286208, 20357760, 27143680, 40715520, 81431040]

約数ペア:

[(1, 81431040), (2, 40715520), (3, 27143680), (4, 20357760), (5, 16286208), (6, 13571840), (8, 10178880), (10, 8143104), (12, 6785920), (15, 5428736), (16, 5089440), (20, 4071552), (23, 3540480), (24, 3392960), (30, 2714368), (32, 2544720), (40, 2035776), (46, 1770240), (48, 1696480), (60, 1357184), (64, 1272360), (69, 1180160), (80, 1017888), (92, 885120), (96, 848240), (115, 708096), (120, 678592), (128, 636180), (138, 590080), (160, 508944), (184, 442560), (192, 424120), (230, 354048), (240, 339296), (256, 318090), (276, 295040), (320, 254472), (345, 236032), (368, 221280), (384, 212060), (460, 177024), (461, 176640), (480, 169648), (512, 159045), (552, 147520), (640, 127236), (690, 118016), (736, 110640), (768, 106030), (920, 88512), (922, 88320), (960, 84824), (1104, 73760), (1280, 63618), (1380, 59008), (1383, 58880), (1472, 55320), (1536, 53015), (1840, 44256), (1844, 44160), (1920, 42412), (2208, 36880), (2305, 35328), (2560, 31809), (2760, 29504), (2766, 29440), (2944, 27660), (3680, 22128), (3688, 22080), (3840, 21206), (4416, 18440), (4610, 17664), (5520, 14752), (5532, 14720), (5888, 13830), (6915, 11776), (7360, 11064), (7376, 11040), (7680, 10603), (8832, 9220)]