221657520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{131939}}^1$

素因数の和:131962

約数の個数: 80

約数和(自身を含む): 785306880

約数和(自身を除く): 563649360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 131939, 263878, 395817, 527756, 659695, 791634, 923573, 1055512, 1319390, 1583268, 1847146, 1979085, 2111024, 2638780, 2770719, 3166536, 3694292, 3958170, 4617865, 5277560, 5541438, 6333072, 7388584, 7916340, 9235730, 10555120, 11082876, 13853595, 14777168, 15832680, 18471460, 22165752, 27707190, 31665360, 36942920, 44331504, 55414380, 73885840, 110828760, 221657520]

約数ペア:

[(1, 221657520), (2, 110828760), (3, 73885840), (4, 55414380), (5, 44331504), (6, 36942920), (7, 31665360), (8, 27707190), (10, 22165752), (12, 18471460), (14, 15832680), (15, 14777168), (16, 13853595), (20, 11082876), (21, 10555120), (24, 9235730), (28, 7916340), (30, 7388584), (35, 6333072), (40, 5541438), (42, 5277560), (48, 4617865), (56, 3958170), (60, 3694292), (70, 3166536), (80, 2770719), (84, 2638780), (105, 2111024), (112, 1979085), (120, 1847146), (140, 1583268), (168, 1319390), (210, 1055512), (240, 923573), (280, 791634), (336, 659695), (420, 527756), (560, 395817), (840, 263878), (1680, 131939)]