215138280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{256117}}^1$

素因数の和:256138

約数の個数: 64

約数和(自身を含む): 737619840

約数和(自身を除く): 522481560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 256117, 512234, 768351, 1024468, 1280585, 1536702, 1792819, 2048936, 2561170, 3073404, 3585638, 3841755, 5122340, 5378457, 6146808, 7171276, 7683510, 8964095, 10244680, 10756914, 14342552, 15367020, 17928190, 21513828, 26892285, 30734040, 35856380, 43027656, 53784570, 71712760, 107569140, 215138280]

約数ペア:

[(1, 215138280), (2, 107569140), (3, 71712760), (4, 53784570), (5, 43027656), (6, 35856380), (7, 30734040), (8, 26892285), (10, 21513828), (12, 17928190), (14, 15367020), (15, 14342552), (20, 10756914), (21, 10244680), (24, 8964095), (28, 7683510), (30, 7171276), (35, 6146808), (40, 5378457), (42, 5122340), (56, 3841755), (60, 3585638), (70, 3073404), (84, 2561170), (105, 2048936), (120, 1792819), (140, 1536702), (168, 1280585), (210, 1024468), (280, 768351), (420, 512234), (840, 256117)]