1245561520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{31327}}^1$

素因数の和:31418

約数の個数: 80

約数和(自身を含む): 3356356608

約数和(自身を除く): 2110795088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5680, 7952, 9940, 19880, 31327, 39760, 62654, 125308, 156635, 219289, 250616, 313270, 438578, 501232, 626540, 877156, 1096445, 1253080, 1754312, 2192890, 2224217, 2506160, 3508624, 4385780, 4448434, 8771560, 8896868, 11121085, 15569519, 17543120, 17793736, 22242170, 31139038, 35587472, 44484340, 62278076, 77847595, 88968680, 124556152, 155695190, 177937360, 249112304, 311390380, 622780760, 1245561520]

約数ペア:

[(1, 1245561520), (2, 622780760), (4, 311390380), (5, 249112304), (7, 177937360), (8, 155695190), (10, 124556152), (14, 88968680), (16, 77847595), (20, 62278076), (28, 44484340), (35, 35587472), (40, 31139038), (56, 22242170), (70, 17793736), (71, 17543120), (80, 15569519), (112, 11121085), (140, 8896868), (142, 8771560), (280, 4448434), (284, 4385780), (355, 3508624), (497, 2506160), (560, 2224217), (568, 2192890), (710, 1754312), (994, 1253080), (1136, 1096445), (1420, 877156), (1988, 626540), (2485, 501232), (2840, 438578), (3976, 313270), (4970, 250616), (5680, 219289), (7952, 156635), (9940, 125308), (19880, 62654), (31327, 39760)]