4894280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:3989

約数の個数: 32

約数和(自身を含む): 11370240

約数和(自身を除く): 6475960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3947, 7894, 15788, 19735, 31576, 39470, 78940, 122357, 157880, 244714, 489428, 611785, 978856, 1223570, 2447140, 4894280]

約数ペア:

[(1, 4894280), (2, 2447140), (4, 1223570), (5, 978856), (8, 611785), (10, 489428), (20, 244714), (31, 157880), (40, 122357), (62, 78940), (124, 39470), (155, 31576), (248, 19735), (310, 15788), (620, 7894), (1240, 3947)]