19718912

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 43708896

約数和(自身を除く): 23989984

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 128, 136, 184, 197, 256, 272, 368, 391, 394, 544, 736, 782, 788, 1088, 1472, 1564, 1576, 2176, 2944, 3128, 3152, 3349, 4352, 4531, 5888, 6256, 6304, 6698, 9062, 12512, 12608, 13396, 18124, 25024, 25216, 26792, 36248, 50048, 50432, 53584, 72496, 77027, 100096, 107168, 144992, 154054, 214336, 289984, 308108, 428672, 579968, 616216, 857344, 1159936, 1232432, 2464864, 4929728, 9859456, 19718912]

約数ペア:

[(1, 19718912), (2, 9859456), (4, 4929728), (8, 2464864), (16, 1232432), (17, 1159936), (23, 857344), (32, 616216), (34, 579968), (46, 428672), (64, 308108), (68, 289984), (92, 214336), (128, 154054), (136, 144992), (184, 107168), (197, 100096), (256, 77027), (272, 72496), (368, 53584), (391, 50432), (394, 50048), (544, 36248), (736, 26792), (782, 25216), (788, 25024), (1088, 18124), (1472, 13396), (1564, 12608), (1576, 12512), (2176, 9062), (2944, 6698), (3128, 6304), (3152, 6256), (3349, 5888), (4352, 4531)]