689993997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2129}}^1$

素因数の和:2234

約数の個数: 64

約数和(自身を含む): 1217064960

約数和(自身を除く): 527070963

約数列:

[1, 3, 7, 11, 21, 23, 33, 61, 69, 77, 161, 183, 231, 253, 427, 483, 671, 759, 1281, 1403, 1771, 2013, 2129, 4209, 4697, 5313, 6387, 9821, 14091, 14903, 15433, 23419, 29463, 44709, 46299, 48967, 70257, 108031, 129869, 146901, 163933, 324093, 342769, 389607, 491799, 538637, 909083, 1028307, 1428559, 1615911, 2727249, 2986987, 3770459, 4285677, 8960961, 9999913, 11311377, 20908909, 29999739, 32856857, 62726727, 98570571, 229997999, 689993997]

約数ペア:

[(1, 689993997), (3, 229997999), (7, 98570571), (11, 62726727), (21, 32856857), (23, 29999739), (33, 20908909), (61, 11311377), (69, 9999913), (77, 8960961), (161, 4285677), (183, 3770459), (231, 2986987), (253, 2727249), (427, 1615911), (483, 1428559), (671, 1028307), (759, 909083), (1281, 538637), (1403, 491799), (1771, 389607), (2013, 342769), (2129, 324093), (4209, 163933), (4697, 146901), (5313, 129869), (6387, 108031), (9821, 70257), (14091, 48967), (14903, 46299), (15433, 44709), (23419, 29463)]