78836590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:913

約数の個数: 48

約数和(自身を含む): 165990384

約数和(自身を除く): 87153794

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 251, 490, 502, 641, 1255, 1282, 1757, 2510, 3205, 3514, 4487, 6410, 8785, 8974, 12299, 17570, 22435, 24598, 31409, 44870, 61495, 62818, 122990, 157045, 160891, 314090, 321782, 804455, 1126237, 1608910, 2252474, 5631185, 7883659, 11262370, 15767318, 39418295, 78836590]

約数ペア:

[(1, 78836590), (2, 39418295), (5, 15767318), (7, 11262370), (10, 7883659), (14, 5631185), (35, 2252474), (49, 1608910), (70, 1126237), (98, 804455), (245, 321782), (251, 314090), (490, 160891), (502, 157045), (641, 122990), (1255, 62818), (1282, 61495), (1757, 44870), (2510, 31409), (3205, 24598), (3514, 22435), (4487, 17570), (6410, 12299), (8785, 8974)]