28974316

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 61689600

約数和(自身を除く): 32715284

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 107, 133, 214, 266, 428, 509, 532, 749, 1018, 1498, 2033, 2036, 2996, 3563, 4066, 7126, 8132, 9671, 14231, 14252, 19342, 28462, 38684, 54463, 56924, 67697, 108926, 135394, 217852, 270788, 381241, 762482, 1034797, 1524964, 2069594, 4139188, 7243579, 14487158, 28974316]

約数ペア:

[(1, 28974316), (2, 14487158), (4, 7243579), (7, 4139188), (14, 2069594), (19, 1524964), (28, 1034797), (38, 762482), (76, 381241), (107, 270788), (133, 217852), (214, 135394), (266, 108926), (428, 67697), (509, 56924), (532, 54463), (749, 38684), (1018, 28462), (1498, 19342), (2033, 14252), (2036, 14231), (2996, 9671), (3563, 8132), (4066, 7126)]