81420556

素因数分解:

$2^2\times 7^2\times {\mathrm{487}}^1\times {\mathrm{853}}^1$

素因数の和:1358

約数の個数: 36

約数和(自身を含む): 166284048

約数和(自身を除く): 84863492

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 487, 853, 974, 1706, 1948, 3409, 3412, 5971, 6818, 11942, 13636, 23863, 23884, 41797, 47726, 83594, 95452, 167188, 415411, 830822, 1661644, 2907877, 5815754, 11631508, 20355139, 40710278, 81420556]

約数ペア:

[(1, 81420556), (2, 40710278), (4, 20355139), (7, 11631508), (14, 5815754), (28, 2907877), (49, 1661644), (98, 830822), (196, 415411), (487, 167188), (853, 95452), (974, 83594), (1706, 47726), (1948, 41797), (3409, 23884), (3412, 23863), (5971, 13636), (6818, 11942)]