215721856

素因数分解:

$2^7\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3483

約数の個数: 64

約数和(自身を含む): 498216960

約数和(自身を除く): 282495104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 284, 448, 497, 568, 896, 994, 1136, 1988, 2272, 3391, 3976, 4544, 6782, 7952, 9088, 13564, 15904, 23737, 27128, 31808, 47474, 54256, 63616, 94948, 108512, 189896, 217024, 240761, 379792, 434048, 481522, 759584, 963044, 1519168, 1685327, 1926088, 3038336, 3370654, 3852176, 6741308, 7704352, 13482616, 15408704, 26965232, 30817408, 53930464, 107860928, 215721856]

約数ペア:

[(1, 215721856), (2, 107860928), (4, 53930464), (7, 30817408), (8, 26965232), (14, 15408704), (16, 13482616), (28, 7704352), (32, 6741308), (56, 3852176), (64, 3370654), (71, 3038336), (112, 1926088), (128, 1685327), (142, 1519168), (224, 963044), (284, 759584), (448, 481522), (497, 434048), (568, 379792), (896, 240761), (994, 217024), (1136, 189896), (1988, 108512), (2272, 94948), (3391, 63616), (3976, 54256), (4544, 47474), (6782, 31808), (7952, 27128), (9088, 23737), (13564, 15904)]