85858100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 195695808

約数和(自身を除く): 109837708

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 43, 50, 82, 86, 100, 164, 172, 205, 215, 410, 430, 487, 820, 860, 974, 1025, 1075, 1763, 1948, 2050, 2150, 2435, 3526, 4100, 4300, 4870, 7052, 8815, 9740, 12175, 17630, 19967, 20941, 24350, 35260, 39934, 41882, 44075, 48700, 79868, 83764, 88150, 99835, 104705, 176300, 199670, 209410, 399340, 418820, 499175, 523525, 858581, 998350, 1047050, 1717162, 1996700, 2094100, 3434324, 4292905, 8585810, 17171620, 21464525, 42929050, 85858100]

約数ペア:

[(1, 85858100), (2, 42929050), (4, 21464525), (5, 17171620), (10, 8585810), (20, 4292905), (25, 3434324), (41, 2094100), (43, 1996700), (50, 1717162), (82, 1047050), (86, 998350), (100, 858581), (164, 523525), (172, 499175), (205, 418820), (215, 399340), (410, 209410), (430, 199670), (487, 176300), (820, 104705), (860, 99835), (974, 88150), (1025, 83764), (1075, 79868), (1763, 48700), (1948, 44075), (2050, 41882), (2150, 39934), (2435, 35260), (3526, 24350), (4100, 20941), (4300, 19967), (4870, 17630), (7052, 12175), (8815, 9740)]