138021520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{18959}}^1$

素因数の和:18992

約数の個数: 80

約数和(自身を含む): 394974720

約数和(自身を除く): 256953200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 18959, 37918, 75836, 94795, 132713, 151672, 189590, 246467, 265426, 303344, 379180, 492934, 530852, 663565, 758360, 985868, 1061704, 1232335, 1327130, 1516720, 1725269, 1971736, 2123408, 2464670, 2654260, 3450538, 3943472, 4929340, 5308520, 6901076, 8626345, 9858680, 10617040, 13802152, 17252690, 19717360, 27604304, 34505380, 69010760, 138021520]

約数ペア:

[(1, 138021520), (2, 69010760), (4, 34505380), (5, 27604304), (7, 19717360), (8, 17252690), (10, 13802152), (13, 10617040), (14, 9858680), (16, 8626345), (20, 6901076), (26, 5308520), (28, 4929340), (35, 3943472), (40, 3450538), (52, 2654260), (56, 2464670), (65, 2123408), (70, 1971736), (80, 1725269), (91, 1516720), (104, 1327130), (112, 1232335), (130, 1061704), (140, 985868), (182, 758360), (208, 663565), (260, 530852), (280, 492934), (364, 379180), (455, 303344), (520, 265426), (560, 246467), (728, 189590), (910, 151672), (1040, 132713), (1456, 94795), (1820, 75836), (3640, 37918), (7280, 18959)]