257987760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1074949}}^1$

素因数の和:1074965

約数の個数: 40

約数和(自身を含む): 799762800

約数和(自身を除く): 541775040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1074949, 2149898, 3224847, 4299796, 5374745, 6449694, 8599592, 10749490, 12899388, 16124235, 17199184, 21498980, 25798776, 32248470, 42997960, 51597552, 64496940, 85995920, 128993880, 257987760]

約数ペア:

[(1, 257987760), (2, 128993880), (3, 85995920), (4, 64496940), (5, 51597552), (6, 42997960), (8, 32248470), (10, 25798776), (12, 21498980), (15, 17199184), (16, 16124235), (20, 12899388), (24, 10749490), (30, 8599592), (40, 6449694), (48, 5374745), (60, 4299796), (80, 3224847), (120, 2149898), (240, 1074949)]