20153320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 49947840

約数和(自身を除く): 29794520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 281, 326, 440, 562, 652, 815, 1124, 1304, 1405, 1630, 1793, 2248, 2810, 3091, 3260, 3586, 5620, 6182, 6520, 7172, 8965, 11240, 12364, 14344, 15455, 17930, 24728, 30910, 35860, 45803, 61820, 71720, 91606, 123640, 183212, 229015, 366424, 458030, 503833, 916060, 1007666, 1832120, 2015332, 2519165, 4030664, 5038330, 10076660, 20153320]

約数ペア:

[(1, 20153320), (2, 10076660), (4, 5038330), (5, 4030664), (8, 2519165), (10, 2015332), (11, 1832120), (20, 1007666), (22, 916060), (40, 503833), (44, 458030), (55, 366424), (88, 229015), (110, 183212), (163, 123640), (220, 91606), (281, 71720), (326, 61820), (440, 45803), (562, 35860), (652, 30910), (815, 24728), (1124, 17930), (1304, 15455), (1405, 14344), (1630, 12364), (1793, 11240), (2248, 8965), (2810, 7172), (3091, 6520), (3260, 6182), (3586, 5620)]