1409740420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{71999}}^1$

素因数の和:72108

約数の個数: 48

約数和(自身を含む): 3265920000

約数和(自身を除く): 1856179580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 71999, 143998, 287996, 359995, 719990, 791989, 1439980, 1583978, 3167956, 3959945, 6407911, 7919890, 12815822, 15839780, 25631644, 32039555, 64079110, 70487021, 128158220, 140974042, 281948084, 352435105, 704870210, 1409740420]

約数ペア:

[(1, 1409740420), (2, 704870210), (4, 352435105), (5, 281948084), (10, 140974042), (11, 128158220), (20, 70487021), (22, 64079110), (44, 32039555), (55, 25631644), (89, 15839780), (110, 12815822), (178, 7919890), (220, 6407911), (356, 3959945), (445, 3167956), (890, 1583978), (979, 1439980), (1780, 791989), (1958, 719990), (3916, 359995), (4895, 287996), (9790, 143998), (19580, 71999)]