18826480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 28313360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 109, 127, 136, 170, 218, 254, 272, 340, 436, 508, 545, 635, 680, 872, 1016, 1090, 1270, 1360, 1744, 1853, 2032, 2159, 2180, 2540, 3706, 4318, 4360, 5080, 7412, 8636, 8720, 9265, 10160, 10795, 13843, 14824, 17272, 18530, 21590, 27686, 29648, 34544, 37060, 43180, 55372, 69215, 74120, 86360, 110744, 138430, 148240, 172720, 221488, 235331, 276860, 470662, 553720, 941324, 1107440, 1176655, 1882648, 2353310, 3765296, 4706620, 9413240, 18826480]

約数ペア:

[(1, 18826480), (2, 9413240), (4, 4706620), (5, 3765296), (8, 2353310), (10, 1882648), (16, 1176655), (17, 1107440), (20, 941324), (34, 553720), (40, 470662), (68, 276860), (80, 235331), (85, 221488), (109, 172720), (127, 148240), (136, 138430), (170, 110744), (218, 86360), (254, 74120), (272, 69215), (340, 55372), (436, 43180), (508, 37060), (545, 34544), (635, 29648), (680, 27686), (872, 21590), (1016, 18530), (1090, 17272), (1270, 14824), (1360, 13843), (1744, 10795), (1853, 10160), (2032, 9265), (2159, 8720), (2180, 8636), (2540, 7412), (3706, 5080), (4318, 4360)]