217426820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 519547392

約数和(自身を除く): 302120572

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 103, 115, 130, 206, 230, 260, 299, 353, 412, 460, 515, 598, 706, 1030, 1196, 1339, 1412, 1495, 1765, 2060, 2369, 2678, 2990, 3530, 4589, 4738, 5356, 5980, 6695, 7060, 8119, 9178, 9476, 11845, 13390, 16238, 18356, 22945, 23690, 26780, 30797, 32476, 36359, 40595, 45890, 47380, 61594, 72718, 81190, 91780, 105547, 123188, 145436, 153985, 162380, 181795, 211094, 307970, 363590, 422188, 472667, 527735, 615940, 727180, 836257, 945334, 1055470, 1672514, 1890668, 2110940, 2363335, 3345028, 4181285, 4726670, 8362570, 9453340, 10871341, 16725140, 21742682, 43485364, 54356705, 108713410, 217426820]

約数ペア:

[(1, 217426820), (2, 108713410), (4, 54356705), (5, 43485364), (10, 21742682), (13, 16725140), (20, 10871341), (23, 9453340), (26, 8362570), (46, 4726670), (52, 4181285), (65, 3345028), (92, 2363335), (103, 2110940), (115, 1890668), (130, 1672514), (206, 1055470), (230, 945334), (260, 836257), (299, 727180), (353, 615940), (412, 527735), (460, 472667), (515, 422188), (598, 363590), (706, 307970), (1030, 211094), (1196, 181795), (1339, 162380), (1412, 153985), (1495, 145436), (1765, 123188), (2060, 105547), (2369, 91780), (2678, 81190), (2990, 72718), (3530, 61594), (4589, 47380), (4738, 45890), (5356, 40595), (5980, 36359), (6695, 32476), (7060, 30797), (8119, 26780), (9178, 23690), (9476, 22945), (11845, 18356), (13390, 16238)]