80498720

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5653}}^1$

素因数の和:5757

約数の個数: 48

約数和(自身を含む): 192349080

約数和(自身を除く): 111850360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5653, 7120, 11306, 14240, 22612, 28265, 45224, 56530, 90448, 113060, 180896, 226120, 452240, 503117, 904480, 1006234, 2012468, 2515585, 4024936, 5031170, 8049872, 10062340, 16099744, 20124680, 40249360, 80498720]

約数ペア:

[(1, 80498720), (2, 40249360), (4, 20124680), (5, 16099744), (8, 10062340), (10, 8049872), (16, 5031170), (20, 4024936), (32, 2515585), (40, 2012468), (80, 1006234), (89, 904480), (160, 503117), (178, 452240), (356, 226120), (445, 180896), (712, 113060), (890, 90448), (1424, 56530), (1780, 45224), (2848, 28265), (3560, 22612), (5653, 14240), (7120, 11306)]