20618977920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{346421}}^1$

素因数の和:346474

約数の個数: 128

約数和(自身を含む): 67843284480

約数和(自身を除く): 47224306560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4960, 5952, 7440, 9920, 11904, 14880, 19840, 29760, 59520, 346421, 692842, 1039263, 1385684, 1732105, 2078526, 2771368, 3464210, 4157052, 5196315, 5542736, 6928420, 8314104, 10392630, 10739051, 11085472, 13856840, 16628208, 20785260, 21478102, 22170944, 27713680, 32217153, 33256416, 41570520, 42956204, 44341888, 53695255, 55427360, 64434306, 66512832, 83141040, 85912408, 107390510, 110854720, 128868612, 133025664, 161085765, 166282080, 171824816, 214781020, 221709440, 257737224, 322171530, 332564160, 343649632, 429562040, 515474448, 644343060, 665128320, 687299264, 859124080, 1030948896, 1288686120, 1374598528, 1718248160, 2061897792, 2577372240, 3436496320, 4123795584, 5154744480, 6872992640, 10309488960, 20618977920]

約数ペア:

[(1, 20618977920), (2, 10309488960), (3, 6872992640), (4, 5154744480), (5, 4123795584), (6, 3436496320), (8, 2577372240), (10, 2061897792), (12, 1718248160), (15, 1374598528), (16, 1288686120), (20, 1030948896), (24, 859124080), (30, 687299264), (31, 665128320), (32, 644343060), (40, 515474448), (48, 429562040), (60, 343649632), (62, 332564160), (64, 322171530), (80, 257737224), (93, 221709440), (96, 214781020), (120, 171824816), (124, 166282080), (128, 161085765), (155, 133025664), (160, 128868612), (186, 110854720), (192, 107390510), (240, 85912408), (248, 83141040), (310, 66512832), (320, 64434306), (372, 55427360), (384, 53695255), (465, 44341888), (480, 42956204), (496, 41570520), (620, 33256416), (640, 32217153), (744, 27713680), (930, 22170944), (960, 21478102), (992, 20785260), (1240, 16628208), (1488, 13856840), (1860, 11085472), (1920, 10739051), (1984, 10392630), (2480, 8314104), (2976, 6928420), (3720, 5542736), (3968, 5196315), (4960, 4157052), (5952, 3464210), (7440, 2771368), (9920, 2078526), (11904, 1732105), (14880, 1385684), (19840, 1039263), (29760, 692842), (59520, 346421)]