247204990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1223}}^1$

素因数の和:1317

約数の個数: 64

約数和(自身を含む): 499685760

約数和(自身を除く): 252480770

約数列:

[1, 2, 5, 10, 17, 29, 34, 41, 58, 82, 85, 145, 170, 205, 290, 410, 493, 697, 986, 1189, 1223, 1394, 2378, 2446, 2465, 3485, 4930, 5945, 6115, 6970, 11890, 12230, 20213, 20791, 35467, 40426, 41582, 50143, 70934, 100286, 101065, 103955, 177335, 202130, 207910, 250715, 354670, 501430, 602939, 852431, 1205878, 1454147, 1704862, 2908294, 3014695, 4262155, 6029390, 7270735, 8524310, 14541470, 24720499, 49440998, 123602495, 247204990]

約数ペア:

[(1, 247204990), (2, 123602495), (5, 49440998), (10, 24720499), (17, 14541470), (29, 8524310), (34, 7270735), (41, 6029390), (58, 4262155), (82, 3014695), (85, 2908294), (145, 1704862), (170, 1454147), (205, 1205878), (290, 852431), (410, 602939), (493, 501430), (697, 354670), (986, 250715), (1189, 207910), (1223, 202130), (1394, 177335), (2378, 103955), (2446, 101065), (2465, 100286), (3485, 70934), (4930, 50143), (5945, 41582), (6115, 40426), (6970, 35467), (11890, 20791), (12230, 20213)]