258568520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{29789}}^1$

素因数の和:29838

約数の個数: 64

約数和(自身を含む): 686361600

約数和(自身を除く): 427793080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 29789, 59578, 119156, 148945, 208523, 238312, 297890, 417046, 595780, 834092, 923459, 1042615, 1191560, 1668184, 1846918, 2085230, 3693836, 4170460, 4617295, 6464213, 7387672, 8340920, 9234590, 12928426, 18469180, 25856852, 32321065, 36938360, 51713704, 64642130, 129284260, 258568520]

約数ペア:

[(1, 258568520), (2, 129284260), (4, 64642130), (5, 51713704), (7, 36938360), (8, 32321065), (10, 25856852), (14, 18469180), (20, 12928426), (28, 9234590), (31, 8340920), (35, 7387672), (40, 6464213), (56, 4617295), (62, 4170460), (70, 3693836), (124, 2085230), (140, 1846918), (155, 1668184), (217, 1191560), (248, 1042615), (280, 923459), (310, 834092), (434, 595780), (620, 417046), (868, 297890), (1085, 238312), (1240, 208523), (1736, 148945), (2170, 119156), (4340, 59578), (8680, 29789)]