31721616

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 93624960

約数和(自身を除く): 61903344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 47, 48, 72, 86, 94, 109, 129, 141, 144, 172, 188, 218, 258, 282, 327, 344, 376, 387, 423, 436, 516, 564, 654, 688, 752, 774, 846, 872, 981, 1032, 1128, 1308, 1548, 1692, 1744, 1962, 2021, 2064, 2256, 2616, 3096, 3384, 3924, 4042, 4687, 5123, 5232, 6063, 6192, 6768, 7848, 8084, 9374, 10246, 12126, 14061, 15369, 15696, 16168, 18189, 18748, 20492, 24252, 28122, 30738, 32336, 36378, 37496, 40984, 42183, 46107, 48504, 56244, 61476, 72756, 74992, 81968, 84366, 92214, 97008, 112488, 122952, 145512, 168732, 184428, 220289, 224976, 245904, 291024, 337464, 368856, 440578, 660867, 674928, 737712, 881156, 1321734, 1762312, 1982601, 2643468, 3524624, 3965202, 5286936, 7930404, 10573872, 15860808, 31721616]

約数ペア:

[(1, 31721616), (2, 15860808), (3, 10573872), (4, 7930404), (6, 5286936), (8, 3965202), (9, 3524624), (12, 2643468), (16, 1982601), (18, 1762312), (24, 1321734), (36, 881156), (43, 737712), (47, 674928), (48, 660867), (72, 440578), (86, 368856), (94, 337464), (109, 291024), (129, 245904), (141, 224976), (144, 220289), (172, 184428), (188, 168732), (218, 145512), (258, 122952), (282, 112488), (327, 97008), (344, 92214), (376, 84366), (387, 81968), (423, 74992), (436, 72756), (516, 61476), (564, 56244), (654, 48504), (688, 46107), (752, 42183), (774, 40984), (846, 37496), (872, 36378), (981, 32336), (1032, 30738), (1128, 28122), (1308, 24252), (1548, 20492), (1692, 18748), (1744, 18189), (1962, 16168), (2021, 15696), (2064, 15369), (2256, 14061), (2616, 12126), (3096, 10246), (3384, 9374), (3924, 8084), (4042, 7848), (4687, 6768), (5123, 6192), (5232, 6063)]