19400368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4909}}^1$

素因数の和:4949

約数の個数: 40

約数和(自身を含む): 42618800

約数和(自身を除く): 23218432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4909, 9818, 19636, 39272, 63817, 78544, 93271, 127634, 186542, 255268, 373084, 510536, 746168, 1021072, 1212523, 1492336, 2425046, 4850092, 9700184, 19400368]

約数ペア:

[(1, 19400368), (2, 9700184), (4, 4850092), (8, 2425046), (13, 1492336), (16, 1212523), (19, 1021072), (26, 746168), (38, 510536), (52, 373084), (76, 255268), (104, 186542), (152, 127634), (208, 93271), (247, 78544), (304, 63817), (494, 39272), (988, 19636), (1976, 9818), (3952, 4909)]