20474272

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 30328928

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 79, 89, 91, 104, 112, 158, 178, 182, 208, 224, 316, 356, 364, 416, 553, 623, 632, 712, 728, 1027, 1106, 1157, 1246, 1264, 1424, 1456, 2054, 2212, 2314, 2492, 2528, 2848, 2912, 4108, 4424, 4628, 4984, 7031, 7189, 8099, 8216, 8848, 9256, 9968, 14062, 14378, 16198, 16432, 17696, 18512, 19936, 28124, 28756, 32396, 32864, 37024, 49217, 56248, 57512, 64792, 91403, 98434, 112496, 115024, 129584, 182806, 196868, 224992, 230048, 259168, 365612, 393736, 639821, 731224, 787472, 1279642, 1462448, 1574944, 2559284, 2924896, 5118568, 10237136, 20474272]

約数ペア:

[(1, 20474272), (2, 10237136), (4, 5118568), (7, 2924896), (8, 2559284), (13, 1574944), (14, 1462448), (16, 1279642), (26, 787472), (28, 731224), (32, 639821), (52, 393736), (56, 365612), (79, 259168), (89, 230048), (91, 224992), (104, 196868), (112, 182806), (158, 129584), (178, 115024), (182, 112496), (208, 98434), (224, 91403), (316, 64792), (356, 57512), (364, 56248), (416, 49217), (553, 37024), (623, 32864), (632, 32396), (712, 28756), (728, 28124), (1027, 19936), (1106, 18512), (1157, 17696), (1246, 16432), (1264, 16198), (1424, 14378), (1456, 14062), (2054, 9968), (2212, 9256), (2314, 8848), (2492, 8216), (2528, 8099), (2848, 7189), (2912, 7031), (4108, 4984), (4424, 4628)]