289705990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 609767424

約数和(自身を除く): 320061434

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 223, 277, 335, 446, 469, 554, 670, 938, 1115, 1385, 1561, 1939, 2230, 2345, 2770, 3122, 3878, 4690, 7805, 9695, 14941, 15610, 18559, 19390, 29882, 37118, 61771, 74705, 92795, 104587, 123542, 129913, 149410, 185590, 209174, 259826, 308855, 432397, 522935, 617710, 649565, 864794, 1045870, 1299130, 2161985, 4138657, 4323970, 8277314, 20693285, 28970599, 41386570, 57941198, 144852995, 289705990]

約数ペア:

[(1, 289705990), (2, 144852995), (5, 57941198), (7, 41386570), (10, 28970599), (14, 20693285), (35, 8277314), (67, 4323970), (70, 4138657), (134, 2161985), (223, 1299130), (277, 1045870), (335, 864794), (446, 649565), (469, 617710), (554, 522935), (670, 432397), (938, 308855), (1115, 259826), (1385, 209174), (1561, 185590), (1939, 149410), (2230, 129913), (2345, 123542), (2770, 104587), (3122, 92795), (3878, 74705), (4690, 61771), (7805, 37118), (9695, 29882), (14941, 19390), (15610, 18559)]