152498780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2551}}^1$

素因数の和:2635

約数の個数: 72

約数和(自身を含む): 378788256

約数和(自身を除く): 226289476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1708, 2135, 2551, 2989, 4270, 5102, 5978, 8540, 10204, 11956, 12755, 14945, 17857, 25510, 29890, 35714, 51020, 59780, 71428, 89285, 124999, 155611, 178570, 249998, 311222, 357140, 499996, 622444, 624995, 778055, 1089277, 1249990, 1556110, 2178554, 2499980, 3112220, 4357108, 5446385, 7624939, 10892770, 15249878, 21785540, 30499756, 38124695, 76249390, 152498780]

約数ペア:

[(1, 152498780), (2, 76249390), (4, 38124695), (5, 30499756), (7, 21785540), (10, 15249878), (14, 10892770), (20, 7624939), (28, 5446385), (35, 4357108), (49, 3112220), (61, 2499980), (70, 2178554), (98, 1556110), (122, 1249990), (140, 1089277), (196, 778055), (244, 624995), (245, 622444), (305, 499996), (427, 357140), (490, 311222), (610, 249998), (854, 178570), (980, 155611), (1220, 124999), (1708, 89285), (2135, 71428), (2551, 59780), (2989, 51020), (4270, 35714), (5102, 29890), (5978, 25510), (8540, 17857), (10204, 14945), (11956, 12755)]