28796985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1035

約数の個数: 64

約数和(自身を含む): 60456960

約数和(自身を除く): 31659975

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 93, 105, 135, 155, 189, 217, 279, 315, 465, 651, 837, 945, 983, 1085, 1395, 1953, 2949, 3255, 4185, 4915, 5859, 6881, 8847, 9765, 14745, 20643, 26541, 29295, 30473, 34405, 44235, 61929, 91419, 103215, 132705, 152365, 185787, 213311, 274257, 309645, 457095, 639933, 822771, 928935, 1066555, 1371285, 1919799, 3199665, 4113855, 5759397, 9598995, 28796985]

約数ペア:

[(1, 28796985), (3, 9598995), (5, 5759397), (7, 4113855), (9, 3199665), (15, 1919799), (21, 1371285), (27, 1066555), (31, 928935), (35, 822771), (45, 639933), (63, 457095), (93, 309645), (105, 274257), (135, 213311), (155, 185787), (189, 152365), (217, 132705), (279, 103215), (315, 91419), (465, 61929), (651, 44235), (837, 34405), (945, 30473), (983, 29295), (1085, 26541), (1395, 20643), (1953, 14745), (2949, 9765), (3255, 8847), (4185, 6881), (4915, 5859)]