1320248875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 1897758720

約数和(自身を除く): 577509845

約数列:

[1, 5, 11, 23, 25, 55, 109, 115, 125, 253, 275, 383, 545, 575, 1199, 1265, 1375, 1915, 2507, 2725, 2875, 4213, 5995, 6325, 8809, 9575, 12535, 13625, 21065, 27577, 29975, 31625, 41747, 44045, 47875, 62675, 96899, 105325, 137885, 149875, 208735, 220225, 313375, 459217, 484495, 526625, 689425, 960181, 1043675, 1101125, 2296085, 2422475, 3447125, 4800905, 5218375, 10561991, 11480425, 12112375, 24004525, 52809955, 57402125, 120022625, 264049775, 1320248875]

約数ペア:

[(1, 1320248875), (5, 264049775), (11, 120022625), (23, 57402125), (25, 52809955), (55, 24004525), (109, 12112375), (115, 11480425), (125, 10561991), (253, 5218375), (275, 4800905), (383, 3447125), (545, 2422475), (575, 2296085), (1199, 1101125), (1265, 1043675), (1375, 960181), (1915, 689425), (2507, 526625), (2725, 484495), (2875, 459217), (4213, 313375), (5995, 220225), (6325, 208735), (8809, 149875), (9575, 137885), (12535, 105325), (13625, 96899), (21065, 62675), (27577, 47875), (29975, 44045), (31625, 41747)]