71807920

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{13397}}^1$

素因数の和:13477

約数の個数: 40

約数和(自身を含む): 169457904

約数和(自身を除く): 97649984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 13397, 26794, 53588, 66985, 107176, 133970, 214352, 267940, 535880, 897599, 1071760, 1795198, 3590396, 4487995, 7180792, 8975990, 14361584, 17951980, 35903960, 71807920]

約数ペア:

[(1, 71807920), (2, 35903960), (4, 17951980), (5, 14361584), (8, 8975990), (10, 7180792), (16, 4487995), (20, 3590396), (40, 1795198), (67, 1071760), (80, 897599), (134, 535880), (268, 267940), (335, 214352), (536, 133970), (670, 107176), (1072, 66985), (1340, 53588), (2680, 26794), (5360, 13397)]