78985520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31849}}^1$

素因数の和:31893

約数の個数: 40

約数和(自身を含む): 189571200

約数和(自身を除く): 110585680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 31849, 63698, 127396, 159245, 254792, 318490, 509584, 636980, 987319, 1273960, 1974638, 2547920, 3949276, 4936595, 7898552, 9873190, 15797104, 19746380, 39492760, 78985520]

約数ペア:

[(1, 78985520), (2, 39492760), (4, 19746380), (5, 15797104), (8, 9873190), (10, 7898552), (16, 4936595), (20, 3949276), (31, 2547920), (40, 1974638), (62, 1273960), (80, 987319), (124, 636980), (155, 509584), (248, 318490), (310, 254792), (496, 159245), (620, 127396), (1240, 63698), (2480, 31849)]