19609808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:395

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 19762672

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 167, 179, 328, 334, 358, 656, 668, 716, 1336, 1432, 2672, 2864, 6847, 7339, 13694, 14678, 27388, 29356, 29893, 54776, 58712, 59786, 109552, 117424, 119572, 239144, 478288, 1225613, 2451226, 4902452, 9804904, 19609808]

約数ペア:

[(1, 19609808), (2, 9804904), (4, 4902452), (8, 2451226), (16, 1225613), (41, 478288), (82, 239144), (164, 119572), (167, 117424), (179, 109552), (328, 59786), (334, 58712), (358, 54776), (656, 29893), (668, 29356), (716, 27388), (1336, 14678), (1432, 13694), (2672, 7339), (2864, 6847)]