204428280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{243367}}^1$

素因数の和:243388

約数の個数: 64

約数和(自身を含む): 700899840

約数和(自身を除く): 496471560

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, 243367, 486734, 730101, 973468, 1216835, 1460202, 1703569, 1946936, 2433670, 2920404, 3407138, 3650505, 4867340, 5110707, 5840808, 6814276, 7301010, 8517845, 9734680, 10221414, 13628552, 14602020, 17035690, 20442828, 25553535, 29204040, 34071380, 40885656, 51107070, 68142760, 102214140, 204428280]

約数ペア:

[(1, 204428280), (2, 102214140), (3, 68142760), (4, 51107070), (5, 40885656), (6, 34071380), (7, 29204040), (8, 25553535), (10, 20442828), (12, 17035690), (14, 14602020), (15, 13628552), (20, 10221414), (21, 9734680), (24, 8517845), (28, 7301010), (30, 6814276), (35, 5840808), (40, 5110707), (42, 4867340), (56, 3650505), (60, 3407138), (70, 2920404), (84, 2433670), (105, 1946936), (120, 1703569), (140, 1460202), (168, 1216835), (210, 973468), (280, 730101), (420, 486734), (840, 243367)]