42839620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 92207808

約数和(自身を除く): 49368188

約数列:

[1, 2, 4, 5, 10, 20, 83, 131, 166, 197, 262, 332, 394, 415, 524, 655, 788, 830, 985, 1310, 1660, 1970, 2620, 3940, 10873, 16351, 21746, 25807, 32702, 43492, 51614, 54365, 65404, 81755, 103228, 108730, 129035, 163510, 217460, 258070, 327020, 516140, 2141981, 4283962, 8567924, 10709905, 21419810, 42839620]

約数ペア:

[(1, 42839620), (2, 21419810), (4, 10709905), (5, 8567924), (10, 4283962), (20, 2141981), (83, 516140), (131, 327020), (166, 258070), (197, 217460), (262, 163510), (332, 129035), (394, 108730), (415, 103228), (524, 81755), (655, 65404), (788, 54365), (830, 51614), (985, 43492), (1310, 32702), (1660, 25807), (1970, 21746), (2620, 16351), (3940, 10873)]