21277920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:572

約数の個数: 96

約数和(自身を含む): 67864608

約数和(自身を除く): 46586688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 97, 120, 160, 194, 240, 291, 388, 457, 480, 485, 582, 776, 914, 970, 1164, 1371, 1455, 1552, 1828, 1940, 2285, 2328, 2742, 2910, 3104, 3656, 3880, 4570, 4656, 5484, 5820, 6855, 7312, 7760, 9140, 9312, 10968, 11640, 13710, 14624, 15520, 18280, 21936, 23280, 27420, 36560, 43872, 44329, 46560, 54840, 73120, 88658, 109680, 132987, 177316, 219360, 221645, 265974, 354632, 443290, 531948, 664935, 709264, 886580, 1063896, 1329870, 1418528, 1773160, 2127792, 2659740, 3546320, 4255584, 5319480, 7092640, 10638960, 21277920]

約数ペア:

[(1, 21277920), (2, 10638960), (3, 7092640), (4, 5319480), (5, 4255584), (6, 3546320), (8, 2659740), (10, 2127792), (12, 1773160), (15, 1418528), (16, 1329870), (20, 1063896), (24, 886580), (30, 709264), (32, 664935), (40, 531948), (48, 443290), (60, 354632), (80, 265974), (96, 221645), (97, 219360), (120, 177316), (160, 132987), (194, 109680), (240, 88658), (291, 73120), (388, 54840), (457, 46560), (480, 44329), (485, 43872), (582, 36560), (776, 27420), (914, 23280), (970, 21936), (1164, 18280), (1371, 15520), (1455, 14624), (1552, 13710), (1828, 11640), (1940, 10968), (2285, 9312), (2328, 9140), (2742, 7760), (2910, 7312), (3104, 6855), (3656, 5820), (3880, 5484), (4570, 4656)]