211278040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1979}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 506800800

約数和(自身を除く): 295522760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 314, 340, 628, 680, 785, 1256, 1570, 1979, 2669, 3140, 3958, 5338, 6280, 7916, 9895, 10676, 13345, 15832, 19790, 21352, 26690, 33643, 39580, 53380, 67286, 79160, 106760, 134572, 168215, 269144, 310703, 336430, 621406, 672860, 1242812, 1345720, 1553515, 2485624, 3107030, 5281951, 6214060, 10563902, 12428120, 21127804, 26409755, 42255608, 52819510, 105639020, 211278040]

約数ペア:

[(1, 211278040), (2, 105639020), (4, 52819510), (5, 42255608), (8, 26409755), (10, 21127804), (17, 12428120), (20, 10563902), (34, 6214060), (40, 5281951), (68, 3107030), (85, 2485624), (136, 1553515), (157, 1345720), (170, 1242812), (314, 672860), (340, 621406), (628, 336430), (680, 310703), (785, 269144), (1256, 168215), (1570, 134572), (1979, 106760), (2669, 79160), (3140, 67286), (3958, 53380), (5338, 39580), (6280, 33643), (7916, 26690), (9895, 21352), (10676, 19790), (13345, 15832)]