215400290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{397}}^1$

素因数の和:771

約数の個数: 64

約数和(自身を含む): 464914944

約数和(自身を除く): 249514654

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 337, 397, 674, 794, 805, 1610, 1685, 1985, 2359, 2779, 3370, 3970, 4718, 5558, 7751, 9131, 11795, 13895, 15502, 18262, 23590, 27790, 38755, 45655, 54257, 63917, 77510, 91310, 108514, 127834, 133789, 267578, 271285, 319585, 542570, 639170, 668945, 936523, 1337890, 1873046, 3077147, 4682615, 6154294, 9365230, 15385735, 21540029, 30771470, 43080058, 107700145, 215400290]

約数ペア:

[(1, 215400290), (2, 107700145), (5, 43080058), (7, 30771470), (10, 21540029), (14, 15385735), (23, 9365230), (35, 6154294), (46, 4682615), (70, 3077147), (115, 1873046), (161, 1337890), (230, 936523), (322, 668945), (337, 639170), (397, 542570), (674, 319585), (794, 271285), (805, 267578), (1610, 133789), (1685, 127834), (1985, 108514), (2359, 91310), (2779, 77510), (3370, 63917), (3970, 54257), (4718, 45655), (5558, 38755), (7751, 27790), (9131, 23590), (11795, 18262), (13895, 15502)]