128990540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3061}}^1$

素因数の和:3127

約数の個数: 72

約数和(自身を含む): 322538832

約数和(自身を除く): 193548292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 3061, 4214, 6020, 6122, 8428, 10535, 12244, 15305, 21070, 21427, 30610, 42140, 42854, 61220, 85708, 107135, 131623, 149989, 214270, 263246, 299978, 428540, 526492, 599956, 658115, 749945, 921361, 1316230, 1499890, 1842722, 2632460, 2999780, 3685444, 4606805, 6449527, 9213610, 12899054, 18427220, 25798108, 32247635, 64495270, 128990540]

約数ペア:

[(1, 128990540), (2, 64495270), (4, 32247635), (5, 25798108), (7, 18427220), (10, 12899054), (14, 9213610), (20, 6449527), (28, 4606805), (35, 3685444), (43, 2999780), (49, 2632460), (70, 1842722), (86, 1499890), (98, 1316230), (140, 921361), (172, 749945), (196, 658115), (215, 599956), (245, 526492), (301, 428540), (430, 299978), (490, 263246), (602, 214270), (860, 149989), (980, 131623), (1204, 107135), (1505, 85708), (2107, 61220), (3010, 42854), (3061, 42140), (4214, 30610), (6020, 21427), (6122, 21070), (8428, 15305), (10535, 12244)]