8411900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 21311136

約数和(自身を除く): 12899236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 61, 70, 100, 122, 140, 175, 197, 244, 305, 350, 394, 427, 610, 700, 788, 854, 985, 1220, 1379, 1525, 1708, 1970, 2135, 2758, 3050, 3940, 4270, 4925, 5516, 6100, 6895, 8540, 9850, 10675, 12017, 13790, 19700, 21350, 24034, 27580, 34475, 42700, 48068, 60085, 68950, 84119, 120170, 137900, 168238, 240340, 300425, 336476, 420595, 600850, 841190, 1201700, 1682380, 2102975, 4205950, 8411900]

約数ペア:

[(1, 8411900), (2, 4205950), (4, 2102975), (5, 1682380), (7, 1201700), (10, 841190), (14, 600850), (20, 420595), (25, 336476), (28, 300425), (35, 240340), (50, 168238), (61, 137900), (70, 120170), (100, 84119), (122, 68950), (140, 60085), (175, 48068), (197, 42700), (244, 34475), (305, 27580), (350, 24034), (394, 21350), (427, 19700), (610, 13790), (700, 12017), (788, 10675), (854, 9850), (985, 8540), (1220, 6895), (1379, 6100), (1525, 5516), (1708, 4925), (1970, 4270), (2135, 3940), (2758, 3050)]