720590985

素因数分解:

$3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:470

約数の個数: 112

約数和(自身を含む): 1423610640

約数和(自身を除く): 703019655

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 81, 85, 87, 135, 145, 153, 243, 255, 261, 401, 405, 435, 459, 493, 729, 765, 783, 1203, 1215, 1305, 1377, 1479, 2005, 2295, 2349, 2465, 3609, 3645, 3915, 4131, 4437, 6015, 6817, 6885, 7047, 7395, 10827, 11629, 11745, 12393, 13311, 18045, 20451, 20655, 21141, 22185, 32481, 34085, 34887, 35235, 39933, 54135, 58145, 61353, 61965, 66555, 97443, 102255, 104661, 105705, 119799, 162405, 174435, 184059, 197693, 199665, 292329, 306765, 313983, 359397, 487215, 523305, 552177, 593079, 598995, 920295, 941949, 988465, 1461645, 1569915, 1656531, 1779237, 1796985, 2760885, 2825847, 2965395, 4709745, 4969593, 5337711, 8282655, 8477541, 8896185, 14129235, 16013133, 24847965, 26688555, 42387705, 48039399, 80065665, 144118197, 240196995, 720590985]

約数ペア:

[(1, 720590985), (3, 240196995), (5, 144118197), (9, 80065665), (15, 48039399), (17, 42387705), (27, 26688555), (29, 24847965), (45, 16013133), (51, 14129235), (81, 8896185), (85, 8477541), (87, 8282655), (135, 5337711), (145, 4969593), (153, 4709745), (243, 2965395), (255, 2825847), (261, 2760885), (401, 1796985), (405, 1779237), (435, 1656531), (459, 1569915), (493, 1461645), (729, 988465), (765, 941949), (783, 920295), (1203, 598995), (1215, 593079), (1305, 552177), (1377, 523305), (1479, 487215), (2005, 359397), (2295, 313983), (2349, 306765), (2465, 292329), (3609, 199665), (3645, 197693), (3915, 184059), (4131, 174435), (4437, 162405), (6015, 119799), (6817, 105705), (6885, 104661), (7047, 102255), (7395, 97443), (10827, 66555), (11629, 61965), (11745, 61353), (12393, 58145), (13311, 54135), (18045, 39933), (20451, 35235), (20655, 34887), (21141, 34085), (22185, 32481)]