20742785387525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{16230979}}^1$

素因数の和:16231134

約数の個数: 48

約数和(自身を含む): 28402397130240

約数和(自身を除く): 7659611742715

約数列:

[1, 5, 17, 25, 31, 85, 97, 155, 425, 485, 527, 775, 1649, 2425, 2635, 3007, 8245, 13175, 15035, 41225, 51119, 75175, 255595, 1277975, 16230979, 81154895, 275926643, 405774475, 503160349, 1379633215, 1574404963, 2515801745, 6898166075, 7872024815, 8553725933, 12579008725, 26764884371, 39360124075, 42768629665, 48806553853, 133824421855, 213843148325, 244032769265, 669122109275, 829711415501, 1220163846325, 4148557077505, 20742785387525]

約数ペア:

[(1, 20742785387525), (5, 4148557077505), (17, 1220163846325), (25, 829711415501), (31, 669122109275), (85, 244032769265), (97, 213843148325), (155, 133824421855), (425, 48806553853), (485, 42768629665), (527, 39360124075), (775, 26764884371), (1649, 12579008725), (2425, 8553725933), (2635, 7872024815), (3007, 6898166075), (8245, 2515801745), (13175, 1574404963), (15035, 1379633215), (41225, 503160349), (51119, 405774475), (75175, 275926643), (255595, 81154895), (1277975, 16230979)]