16817840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 42788928

約数和(自身を除く): 25971088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 103, 104, 130, 157, 206, 208, 260, 314, 412, 515, 520, 628, 785, 824, 1030, 1040, 1256, 1339, 1570, 1648, 2041, 2060, 2512, 2678, 3140, 4082, 4120, 5356, 6280, 6695, 8164, 8240, 10205, 10712, 12560, 13390, 16171, 16328, 20410, 21424, 26780, 32342, 32656, 40820, 53560, 64684, 80855, 81640, 107120, 129368, 161710, 163280, 210223, 258736, 323420, 420446, 646840, 840892, 1051115, 1293680, 1681784, 2102230, 3363568, 4204460, 8408920, 16817840]

約数ペア:

[(1, 16817840), (2, 8408920), (4, 4204460), (5, 3363568), (8, 2102230), (10, 1681784), (13, 1293680), (16, 1051115), (20, 840892), (26, 646840), (40, 420446), (52, 323420), (65, 258736), (80, 210223), (103, 163280), (104, 161710), (130, 129368), (157, 107120), (206, 81640), (208, 80855), (260, 64684), (314, 53560), (412, 40820), (515, 32656), (520, 32342), (628, 26780), (785, 21424), (824, 20410), (1030, 16328), (1040, 16171), (1256, 13390), (1339, 12560), (1570, 10712), (1648, 10205), (2041, 8240), (2060, 8164), (2512, 6695), (2678, 6280), (3140, 5356), (4082, 4120)]