7290220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 18328464

約数和(自身を除く): 11038244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 173, 196, 215, 245, 301, 346, 430, 490, 602, 692, 860, 865, 980, 1204, 1211, 1505, 1730, 2107, 2422, 3010, 3460, 4214, 4844, 6020, 6055, 7439, 8428, 8477, 10535, 12110, 14878, 16954, 21070, 24220, 29756, 33908, 37195, 42140, 42385, 52073, 74390, 84770, 104146, 148780, 169540, 208292, 260365, 364511, 520730, 729022, 1041460, 1458044, 1822555, 3645110, 7290220]

約数ペア:

[(1, 7290220), (2, 3645110), (4, 1822555), (5, 1458044), (7, 1041460), (10, 729022), (14, 520730), (20, 364511), (28, 260365), (35, 208292), (43, 169540), (49, 148780), (70, 104146), (86, 84770), (98, 74390), (140, 52073), (172, 42385), (173, 42140), (196, 37195), (215, 33908), (245, 29756), (301, 24220), (346, 21070), (430, 16954), (490, 14878), (602, 12110), (692, 10535), (860, 8477), (865, 8428), (980, 7439), (1204, 6055), (1211, 6020), (1505, 4844), (1730, 4214), (2107, 3460), (2422, 3010)]