81416780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{467}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 179262720

約数和(自身を除く): 97845940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 379, 460, 467, 758, 934, 1516, 1868, 1895, 2335, 3790, 4670, 7580, 8717, 9340, 10741, 17434, 21482, 34868, 42964, 43585, 53705, 87170, 107410, 174340, 176993, 214820, 353986, 707972, 884965, 1769930, 3539860, 4070839, 8141678, 16283356, 20354195, 40708390, 81416780]

約数ペア:

[(1, 81416780), (2, 40708390), (4, 20354195), (5, 16283356), (10, 8141678), (20, 4070839), (23, 3539860), (46, 1769930), (92, 884965), (115, 707972), (230, 353986), (379, 214820), (460, 176993), (467, 174340), (758, 107410), (934, 87170), (1516, 53705), (1868, 43585), (1895, 42964), (2335, 34868), (3790, 21482), (4670, 17434), (7580, 10741), (8717, 9340)]