210221520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{875923}}^1$

素因数の和:875939

約数の個数: 40

約数和(自身を含む): 651687456

約数和(自身を除く): 441465936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 875923, 1751846, 2627769, 3503692, 4379615, 5255538, 7007384, 8759230, 10511076, 13138845, 14014768, 17518460, 21022152, 26277690, 35036920, 42044304, 52555380, 70073840, 105110760, 210221520]

約数ペア:

[(1, 210221520), (2, 105110760), (3, 70073840), (4, 52555380), (5, 42044304), (6, 35036920), (8, 26277690), (10, 21022152), (12, 17518460), (15, 14014768), (16, 13138845), (20, 10511076), (24, 8759230), (30, 7007384), (40, 5255538), (48, 4379615), (60, 3503692), (80, 2627769), (120, 1751846), (240, 875923)]