31550920

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2383}}^1$

素因数の和:2725

約数の個数: 32

約数和(自身を含む): 71233920

約数和(自身を除く): 39683000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2383, 2648, 3310, 4766, 6620, 9532, 11915, 13240, 19064, 23830, 47660, 95320, 788773, 1577546, 3155092, 3943865, 6310184, 7887730, 15775460, 31550920]

約数ペア:

[(1, 31550920), (2, 15775460), (4, 7887730), (5, 6310184), (8, 3943865), (10, 3155092), (20, 1577546), (40, 788773), (331, 95320), (662, 47660), (1324, 23830), (1655, 19064), (2383, 13240), (2648, 11915), (3310, 9532), (4766, 6620)]