18420030976

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{22031}}^1$

素因数の和:22143

約数の個数: 80

約数和(自身を含む): 38946935808

約数和(自身を除く): 20526904832

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 71, 92, 128, 142, 184, 256, 284, 368, 512, 568, 736, 1136, 1472, 1633, 2272, 2944, 3266, 4544, 5888, 6532, 9088, 11776, 13064, 18176, 22031, 26128, 36352, 44062, 52256, 88124, 104512, 176248, 209024, 352496, 418048, 506713, 704992, 836096, 1013426, 1409984, 1564201, 2026852, 2819968, 3128402, 4053704, 5639936, 6256804, 8107408, 11279872, 12513608, 16214816, 25027216, 32429632, 35976623, 50054432, 64859264, 71953246, 100108864, 129718528, 143906492, 200217728, 259437056, 287812984, 400435456, 575625968, 800870912, 1151251936, 2302503872, 4605007744, 9210015488, 18420030976]

約数ペア:

[(1, 18420030976), (2, 9210015488), (4, 4605007744), (8, 2302503872), (16, 1151251936), (23, 800870912), (32, 575625968), (46, 400435456), (64, 287812984), (71, 259437056), (92, 200217728), (128, 143906492), (142, 129718528), (184, 100108864), (256, 71953246), (284, 64859264), (368, 50054432), (512, 35976623), (568, 32429632), (736, 25027216), (1136, 16214816), (1472, 12513608), (1633, 11279872), (2272, 8107408), (2944, 6256804), (3266, 5639936), (4544, 4053704), (5888, 3128402), (6532, 2819968), (9088, 2026852), (11776, 1564201), (13064, 1409984), (18176, 1013426), (22031, 836096), (26128, 704992), (36352, 506713), (44062, 418048), (52256, 352496), (88124, 209024), (104512, 176248)]