15750728

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 35819520

約数和(自身を除く): 20068792

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 43, 56, 62, 86, 124, 172, 211, 217, 248, 301, 344, 422, 434, 602, 844, 868, 1204, 1333, 1477, 1688, 1736, 2408, 2666, 2954, 5332, 5908, 6541, 9073, 9331, 10664, 11816, 13082, 18146, 18662, 26164, 36292, 37324, 45787, 52328, 63511, 72584, 74648, 91574, 127022, 183148, 254044, 281263, 366296, 508088, 562526, 1125052, 1968841, 2250104, 3937682, 7875364, 15750728]

約数ペア:

[(1, 15750728), (2, 7875364), (4, 3937682), (7, 2250104), (8, 1968841), (14, 1125052), (28, 562526), (31, 508088), (43, 366296), (56, 281263), (62, 254044), (86, 183148), (124, 127022), (172, 91574), (211, 74648), (217, 72584), (248, 63511), (301, 52328), (344, 45787), (422, 37324), (434, 36292), (602, 26164), (844, 18662), (868, 18146), (1204, 13082), (1333, 11816), (1477, 10664), (1688, 9331), (1736, 9073), (2408, 6541), (2666, 5908), (2954, 5332)]