30781840

素因数分解:

$2^4\times 5^1\times {\mathrm{384773}}^1$

素因数の和:384786

約数の個数: 20

約数和(自身を含む): 71567964

約数和(自身を除く): 40786124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 384773, 769546, 1539092, 1923865, 3078184, 3847730, 6156368, 7695460, 15390920, 30781840]

約数ペア:

[(1, 30781840), (2, 15390920), (4, 7695460), (5, 6156368), (8, 3847730), (10, 3078184), (16, 1923865), (20, 1539092), (40, 769546), (80, 384773)]