990147256

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1901}}^1$

素因数の和:2116

約数の個数: 64

約数和(自身を含む): 2169192960

約数和(自身を除く): 1179045704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 131, 142, 262, 284, 497, 524, 568, 917, 994, 1048, 1834, 1901, 1988, 3668, 3802, 3976, 7336, 7604, 9301, 13307, 15208, 18602, 26614, 37204, 53228, 65107, 74408, 106456, 130214, 134971, 249031, 260428, 269942, 498062, 520856, 539884, 944797, 996124, 1079768, 1743217, 1889594, 1992248, 3486434, 3779188, 6972868, 7558376, 13945736, 17681201, 35362402, 70724804, 123768407, 141449608, 247536814, 495073628, 990147256]

約数ペア:

[(1, 990147256), (2, 495073628), (4, 247536814), (7, 141449608), (8, 123768407), (14, 70724804), (28, 35362402), (56, 17681201), (71, 13945736), (131, 7558376), (142, 6972868), (262, 3779188), (284, 3486434), (497, 1992248), (524, 1889594), (568, 1743217), (917, 1079768), (994, 996124), (1048, 944797), (1834, 539884), (1901, 520856), (1988, 498062), (3668, 269942), (3802, 260428), (3976, 249031), (7336, 134971), (7604, 130214), (9301, 106456), (13307, 74408), (15208, 65107), (18602, 53228), (26614, 37204)]