90051440

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 220968000

約数和(自身を除く): 130916560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 109, 115, 184, 218, 230, 368, 436, 449, 460, 545, 872, 898, 920, 1090, 1744, 1796, 1840, 2180, 2245, 2507, 3592, 4360, 4490, 5014, 7184, 8720, 8980, 10028, 10327, 12535, 17960, 20056, 20654, 25070, 35920, 40112, 41308, 48941, 50140, 51635, 82616, 97882, 100280, 103270, 165232, 195764, 200560, 206540, 244705, 391528, 413080, 489410, 783056, 826160, 978820, 1125643, 1957640, 2251286, 3915280, 4502572, 5628215, 9005144, 11256430, 18010288, 22512860, 45025720, 90051440]

約数ペア:

[(1, 90051440), (2, 45025720), (4, 22512860), (5, 18010288), (8, 11256430), (10, 9005144), (16, 5628215), (20, 4502572), (23, 3915280), (40, 2251286), (46, 1957640), (80, 1125643), (92, 978820), (109, 826160), (115, 783056), (184, 489410), (218, 413080), (230, 391528), (368, 244705), (436, 206540), (449, 200560), (460, 195764), (545, 165232), (872, 103270), (898, 100280), (920, 97882), (1090, 82616), (1744, 51635), (1796, 50140), (1840, 48941), (2180, 41308), (2245, 40112), (2507, 35920), (3592, 25070), (4360, 20654), (4490, 20056), (5014, 17960), (7184, 12535), (8720, 10327), (8980, 10028)]