18255440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4657}}^1$

素因数の和:4684

約数の個数: 60

約数和(自身を含む): 49384116

約数和(自身を除く): 31128676

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4657, 9314, 18628, 23285, 32599, 37256, 46570, 65198, 74512, 93140, 130396, 162995, 186280, 228193, 260792, 325990, 372560, 456386, 521584, 651980, 912772, 1140965, 1303960, 1825544, 2281930, 2607920, 3651088, 4563860, 9127720, 18255440]

約数ペア:

[(1, 18255440), (2, 9127720), (4, 4563860), (5, 3651088), (7, 2607920), (8, 2281930), (10, 1825544), (14, 1303960), (16, 1140965), (20, 912772), (28, 651980), (35, 521584), (40, 456386), (49, 372560), (56, 325990), (70, 260792), (80, 228193), (98, 186280), (112, 162995), (140, 130396), (196, 93140), (245, 74512), (280, 65198), (392, 46570), (490, 37256), (560, 32599), (784, 23285), (980, 18628), (1960, 9314), (3920, 4657)]