687470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:105

約数の個数: 48

約数和(自身を含む): 1526688

約数和(自身を除く): 839218

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 61, 70, 98, 115, 122, 161, 230, 245, 305, 322, 427, 490, 610, 805, 854, 1127, 1403, 1610, 2135, 2254, 2806, 2989, 4270, 5635, 5978, 7015, 9821, 11270, 14030, 14945, 19642, 29890, 49105, 68747, 98210, 137494, 343735, 687470]

約数ペア:

[(1, 687470), (2, 343735), (5, 137494), (7, 98210), (10, 68747), (14, 49105), (23, 29890), (35, 19642), (46, 14945), (49, 14030), (61, 11270), (70, 9821), (98, 7015), (115, 5978), (122, 5635), (161, 4270), (230, 2989), (245, 2806), (305, 2254), (322, 2135), (427, 1610), (490, 1403), (610, 1127), (805, 854)]