256343540520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16306841}}^1$

素因数の和:16306986

約数の個数: 64

約数和(自身を含む): 774901131840

約数和(自身を除く): 518557591320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 15720, 16306841, 32613682, 48920523, 65227364, 81534205, 97841046, 130454728, 163068410, 195682092, 244602615, 326136820, 391364184, 489205230, 652273640, 978410460, 1956820920, 2136196171, 4272392342, 6408588513, 8544784684, 10680980855, 12817177026, 17089569368, 21361961710, 25634354052, 32042942565, 42723923420, 51268708104, 64085885130, 85447846840, 128171770260, 256343540520]

約数ペア:

[(1, 256343540520), (2, 128171770260), (3, 85447846840), (4, 64085885130), (5, 51268708104), (6, 42723923420), (8, 32042942565), (10, 25634354052), (12, 21361961710), (15, 17089569368), (20, 12817177026), (24, 10680980855), (30, 8544784684), (40, 6408588513), (60, 4272392342), (120, 2136196171), (131, 1956820920), (262, 978410460), (393, 652273640), (524, 489205230), (655, 391364184), (786, 326136820), (1048, 244602615), (1310, 195682092), (1572, 163068410), (1965, 130454728), (2620, 97841046), (3144, 81534205), (3930, 65227364), (5240, 48920523), (7860, 32613682), (15720, 16306841)]