221663456

素因数分解:

$2^5\times 7^2\times {\mathrm{373}}^1\times {\mathrm{379}}^1$

素因数の和:776

約数の個数: 72

約数和(自身を含む): 510352920

約数和(自身を除く): 288689464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 373, 379, 392, 746, 758, 784, 1492, 1516, 1568, 2611, 2653, 2984, 3032, 5222, 5306, 5968, 6064, 10444, 10612, 11936, 12128, 18277, 18571, 20888, 21224, 36554, 37142, 41776, 42448, 73108, 74284, 83552, 84896, 141367, 146216, 148568, 282734, 292432, 297136, 565468, 584864, 594272, 989569, 1130936, 1979138, 2261872, 3958276, 4523744, 6926983, 7916552, 13853966, 15833104, 27707932, 31666208, 55415864, 110831728, 221663456]

約数ペア:

[(1, 221663456), (2, 110831728), (4, 55415864), (7, 31666208), (8, 27707932), (14, 15833104), (16, 13853966), (28, 7916552), (32, 6926983), (49, 4523744), (56, 3958276), (98, 2261872), (112, 1979138), (196, 1130936), (224, 989569), (373, 594272), (379, 584864), (392, 565468), (746, 297136), (758, 292432), (784, 282734), (1492, 148568), (1516, 146216), (1568, 141367), (2611, 84896), (2653, 83552), (2984, 74284), (3032, 73108), (5222, 42448), (5306, 41776), (5968, 37142), (6064, 36554), (10444, 21224), (10612, 20888), (11936, 18571), (12128, 18277)]