81200396

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 153861120

約数和(自身を除く): 72660724

約数列:

[1, 2, 4, 23, 46, 47, 89, 92, 94, 178, 188, 211, 356, 422, 844, 1081, 2047, 2162, 4094, 4183, 4324, 4853, 8188, 8366, 9706, 9917, 16732, 18779, 19412, 19834, 37558, 39668, 75116, 96209, 192418, 228091, 384836, 431917, 456182, 863834, 882613, 912364, 1727668, 1765226, 3530452, 20300099, 40600198, 81200396]

約数ペア:

[(1, 81200396), (2, 40600198), (4, 20300099), (23, 3530452), (46, 1765226), (47, 1727668), (89, 912364), (92, 882613), (94, 863834), (178, 456182), (188, 431917), (211, 384836), (356, 228091), (422, 192418), (844, 96209), (1081, 75116), (2047, 39668), (2162, 37558), (4094, 19834), (4183, 19412), (4324, 18779), (4853, 16732), (8188, 9917), (8366, 9706)]