4207720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 10549440

約数和(自身を除く): 6341720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 131, 146, 220, 262, 292, 365, 440, 524, 584, 655, 730, 803, 1048, 1310, 1441, 1460, 1606, 2620, 2882, 2920, 3212, 4015, 5240, 5764, 6424, 7205, 8030, 9563, 11528, 14410, 16060, 19126, 28820, 32120, 38252, 47815, 57640, 76504, 95630, 105193, 191260, 210386, 382520, 420772, 525965, 841544, 1051930, 2103860, 4207720]

約数ペア:

[(1, 4207720), (2, 2103860), (4, 1051930), (5, 841544), (8, 525965), (10, 420772), (11, 382520), (20, 210386), (22, 191260), (40, 105193), (44, 95630), (55, 76504), (73, 57640), (88, 47815), (110, 38252), (131, 32120), (146, 28820), (220, 19126), (262, 16060), (292, 14410), (365, 11528), (440, 9563), (524, 8030), (584, 7205), (655, 6424), (730, 5764), (803, 5240), (1048, 4015), (1310, 3212), (1441, 2920), (1460, 2882), (1606, 2620)]