407537920

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 1036062720

約数和(自身を除く): 628524800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 109, 115, 127, 128, 160, 184, 218, 230, 254, 256, 320, 368, 436, 460, 508, 545, 635, 640, 736, 872, 920, 1016, 1090, 1270, 1280, 1472, 1744, 1840, 2032, 2180, 2507, 2540, 2921, 2944, 3488, 3680, 4064, 4360, 5014, 5080, 5842, 5888, 6976, 7360, 8128, 8720, 10028, 10160, 11684, 12535, 13843, 13952, 14605, 14720, 16256, 17440, 20056, 20320, 23368, 25070, 27686, 27904, 29210, 29440, 32512, 34880, 40112, 40640, 46736, 50140, 55372, 58420, 69215, 69760, 80224, 81280, 93472, 100280, 110744, 116840, 138430, 139520, 160448, 162560, 186944, 200560, 221488, 233680, 276860, 318389, 320896, 373888, 401120, 442976, 467360, 553720, 636778, 641792, 747776, 802240, 885952, 934720, 1107440, 1273556, 1591945, 1604480, 1771904, 1869440, 2214880, 2547112, 3183890, 3208960, 3543808, 3738880, 4429760, 5094224, 6367780, 8859520, 10188448, 12735560, 17719040, 20376896, 25471120, 40753792, 50942240, 81507584, 101884480, 203768960, 407537920]

約数ペア:

[(1, 407537920), (2, 203768960), (4, 101884480), (5, 81507584), (8, 50942240), (10, 40753792), (16, 25471120), (20, 20376896), (23, 17719040), (32, 12735560), (40, 10188448), (46, 8859520), (64, 6367780), (80, 5094224), (92, 4429760), (109, 3738880), (115, 3543808), (127, 3208960), (128, 3183890), (160, 2547112), (184, 2214880), (218, 1869440), (230, 1771904), (254, 1604480), (256, 1591945), (320, 1273556), (368, 1107440), (436, 934720), (460, 885952), (508, 802240), (545, 747776), (635, 641792), (640, 636778), (736, 553720), (872, 467360), (920, 442976), (1016, 401120), (1090, 373888), (1270, 320896), (1280, 318389), (1472, 276860), (1744, 233680), (1840, 221488), (2032, 200560), (2180, 186944), (2507, 162560), (2540, 160448), (2921, 139520), (2944, 138430), (3488, 116840), (3680, 110744), (4064, 100280), (4360, 93472), (5014, 81280), (5080, 80224), (5842, 69760), (5888, 69215), (6976, 58420), (7360, 55372), (8128, 50140), (8720, 46736), (10028, 40640), (10160, 40112), (11684, 34880), (12535, 32512), (13843, 29440), (13952, 29210), (14605, 27904), (14720, 27686), (16256, 25070), (17440, 23368), (20056, 20320)]