17828920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 43001280

約数和(自身を除く): 25172360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 167, 170, 314, 334, 340, 628, 668, 680, 785, 835, 1256, 1336, 1570, 1670, 2669, 2839, 3140, 3340, 5338, 5678, 6280, 6680, 10676, 11356, 13345, 14195, 21352, 22712, 26219, 26690, 28390, 52438, 53380, 56780, 104876, 106760, 113560, 131095, 209752, 262190, 445723, 524380, 891446, 1048760, 1782892, 2228615, 3565784, 4457230, 8914460, 17828920]

約数ペア:

[(1, 17828920), (2, 8914460), (4, 4457230), (5, 3565784), (8, 2228615), (10, 1782892), (17, 1048760), (20, 891446), (34, 524380), (40, 445723), (68, 262190), (85, 209752), (136, 131095), (157, 113560), (167, 106760), (170, 104876), (314, 56780), (334, 53380), (340, 52438), (628, 28390), (668, 26690), (680, 26219), (785, 22712), (835, 21352), (1256, 14195), (1336, 13345), (1570, 11356), (1670, 10676), (2669, 6680), (2839, 6280), (3140, 5678), (3340, 5338)]