1209071720

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{47903}}^1$

素因数の和:48545

約数の個数: 32

約数和(自身を含む): 2724779520

約数和(自身を除く): 1515707800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 5048, 6310, 12620, 25240, 47903, 95806, 191612, 239515, 383224, 479030, 958060, 1916120, 30226793, 60453586, 120907172, 151133965, 241814344, 302267930, 604535860, 1209071720]

約数ペア:

[(1, 1209071720), (2, 604535860), (4, 302267930), (5, 241814344), (8, 151133965), (10, 120907172), (20, 60453586), (40, 30226793), (631, 1916120), (1262, 958060), (2524, 479030), (3155, 383224), (5048, 239515), (6310, 191612), (12620, 95806), (25240, 47903)]