667343740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{2713}}^1$

素因数の和:2987

約数の個数: 72

約数和(自身を含む): 1637323632

約数和(自身を除く): 969979892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 490, 502, 980, 1004, 1255, 1757, 2510, 2713, 3514, 5020, 5426, 7028, 8785, 10852, 12299, 13565, 17570, 18991, 24598, 27130, 35140, 37982, 49196, 54260, 61495, 75964, 94955, 122990, 132937, 189910, 245980, 265874, 379820, 531748, 664685, 680963, 1329370, 1361926, 2658740, 2723852, 3404815, 4766741, 6809630, 9533482, 13619260, 19066964, 23833705, 33367187, 47667410, 66734374, 95334820, 133468748, 166835935, 333671870, 667343740]

約数ペア:

[(1, 667343740), (2, 333671870), (4, 166835935), (5, 133468748), (7, 95334820), (10, 66734374), (14, 47667410), (20, 33367187), (28, 23833705), (35, 19066964), (49, 13619260), (70, 9533482), (98, 6809630), (140, 4766741), (196, 3404815), (245, 2723852), (251, 2658740), (490, 1361926), (502, 1329370), (980, 680963), (1004, 664685), (1255, 531748), (1757, 379820), (2510, 265874), (2713, 245980), (3514, 189910), (5020, 132937), (5426, 122990), (7028, 94955), (8785, 75964), (10852, 61495), (12299, 54260), (13565, 49196), (17570, 37982), (18991, 35140), (24598, 27130)]