12912860140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{39749}}^1$

素因数の和:40234

約数の個数: 48

約数和(自身を含む): 27914040000

約数和(自身を除く): 15001179860

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 439, 740, 878, 1756, 2195, 4390, 8780, 16243, 32486, 39749, 64972, 79498, 81215, 158996, 162430, 198745, 324860, 397490, 794980, 1470713, 2941426, 5882852, 7353565, 14707130, 17449811, 29414260, 34899622, 69799244, 87249055, 174498110, 348996220, 645643007, 1291286014, 2582572028, 3228215035, 6456430070, 12912860140]

約数ペア:

[(1, 12912860140), (2, 6456430070), (4, 3228215035), (5, 2582572028), (10, 1291286014), (20, 645643007), (37, 348996220), (74, 174498110), (148, 87249055), (185, 69799244), (370, 34899622), (439, 29414260), (740, 17449811), (878, 14707130), (1756, 7353565), (2195, 5882852), (4390, 2941426), (8780, 1470713), (16243, 794980), (32486, 397490), (39749, 324860), (64972, 198745), (79498, 162430), (81215, 158996)]